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Spectacled Bear Tremarctos orn...
Spectacled Bear Tremarctos ornatus - South America

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Asian Small-clawed Otter Aonyx cinereus

Asian Small-clawed Otter Aonyx cinereus

IUCN Red List Status: Vulnerable

Locations: India, Nepal, Bangladesh, Bhutan, China, Taiwan, Myanmar, Thailand, Laos, Cambodia, Vietnam, Malaysia, Indonesia (Sumatra, Borneo, Java), The Philippines (Palawan)

Found in freshwater wetlands, peat swamps, mangroves, hill streams and rice fields across South and Southeast Asia, with a genetically distinct and critically impacted subspecies (Aonyx cinereus nirnai) in the Western Ghats of India.

The Asian Small-clawed #Otter, the world’s smallest otter species — is inquisitive, intelligent, and highly social. They are listed as #Vulnerable on the IUCN Red List and are declining rapidly due to #palmoil #tea and #coffee #deforestation, #poaching, #pesticide #pollution, and the illegal pet trade. Their fragile habitat in the Western Ghats, India home to the subspecies Aonyx cinereus nirnai, is being destroyed at an alarming rate for palm oil monocultures, plantations, and hydropower development. Boycott #palmoil and demand protection for these sensitive and intelligent wetland sentinels. #BoycottPalmOil #Boycott4Wildlife #Vegan #BoycottMeat

The Asian Small-Clawed Otter 🦦🩷 is the smallest #otter in the 🌎. A tenacious survivor in #Asia’s vast #rivers, #pesticide pollution and #palmoil #ecocide now pose grave threats. Help them when you #Boycottpalmoil 🌴⛔️ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/03/22/asian-small-clawed-otter-aonyx-cinereus/

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Communicating with chirps and whistles, endearing Asian Small-Clawed #Otters live in rowdy groups 🦦😘 They’re #vulnerable from the illegal #pet trade and #palmoil #deforestation. #Boycottpalmoil 🌴🩸❌ #Boycott4Wildlife in the supermarket! @palmoildetect https://palmoildetectives.com/2026/03/22/asian-small-clawed-otter-aonyx-cinereus/

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https://youtu.be/R9L-N1WgFig

Appearance and Behaviour

With silky chocolate-brown fur, pale undersides and a broad, flat face, the Asian Small-clawed Otter has a distinct charm. Their tiny claws don’t extend past their fingers — an adaptation that gives them remarkable dexterity for catching prey. They weigh only 2.7 to 3.5 kg and reach lengths of 73 to 96 cm, making them the smallest otter species in the world.

Highly vocal and playful, these otters live in tight-knit family groups of up to 15. They communicate with at least a dozen vocalisations — chirps, squeals and whistles — and use communal latrines to mark their territories. In the Western Ghats, they are more active at night and prefer rugged hill streams with dense grasses and rocky pools for cover and escape routes.

Threats

Palm oil deforestation and peat swamp destruction

Across Southeast Asia, especially in Indonesia and Malaysia, vast areas of peat swamp forests and mangroves — critical habitats for Asian Small-clawed Otters — have been destroyed to make way for palm oil plantations. These plantations drain wetlands, replace diverse ecosystems with monocultures, and leave otters with no access to food or cover. In India, the expansion of palm oil into the Western Ghats under so-called ‘green development’ initiatives is now destroying the rocky hill stream habitats used by the Aonyx cinereus nirnai subspecies. This deforestation not only eliminates their shelter and food sources but also causes soil erosion and alters the hydrology of entire watersheds.

Conversion of forests to palm oil, tea and coffee plantations in the Western Ghats

In southern India, particularly in Tamil Nadu and Kerala, large-scale conversion of native forests to palm oil, tea and coffee plantations is reducing the range of Aonyx cinereus nirnai. These monocultures fragment stream habitats and introduce pesticides that poison aquatic life. Studies have found the otters avoiding plantation areas due to lack of vegetation cover and prey (Raha & Hussain, 2016). As a result, the Western Ghats population is now restricted to narrow, isolated pockets, surrounded by human-altered landscapes that are increasingly inhospitable to them.

Capture for the Illegal pet trade and cruel conditions in pet cafés

The Asian Small-clawed Otter is the most heavily trafficked otter species in Asia’s exotic pet trade. Between 2016 and 2017, over 700 individuals were recorded for sale online in countries like Indonesia, Thailand, Malaysia, and Vietnam (Gomez & Bouhuys, 2018). Many are poached from the wild as pups, leading to the death of their parents and collapse of social groups. Captive conditions in pet cafés and private homes cause extreme stress and suffering — and demand is rising due to social media content that normalises otter ownership.

Poaching for pelts and traditional use

Poaching continues to be a severe threat in South Asia. In the Western Ghats, otters are hunted for their pelts and body parts, which are used in traditional medicine or sold on the black market. Reports from protected areas in India reveal organised trapping and trade routes extending across state lines (Prakash et al., 2012). These killings often go undocumented due to weak enforcement, and they rapidly deplete already fragile local populations.

Overfishing and prey depletion

In many parts of Asia, otters face competition from humans for aquatic prey. Overfishing in rivers, lakes, and mangroves has drastically reduced populations of crabs, mudskippers, and fish species that form the core of the otter’s diet. Pollution from fish farms and chemical runoff further weakens these food webs, making otter survival harder during dry or lean seasons. In some areas, otters are also deliberately killed by fishers who perceive them as pests competing for the same resources.

Pesticide run-off pollution from agriculture

Agricultural runoff from palm oil, tea and coffee plantations containing pesticides, herbicides, and heavy metals has been shown to poison water sources throughout the otter’s range. In the Western Ghats of India and parts of Southeast Asia, such contaminants accumulate in the food chain and affect the physiology of aquatic mammals. Polluted waterways reduce prey availability and can lead to bioaccumulation of toxins in otters, weakening their immune systems and reproductive capacity. This is especially critical in closed or stagnant freshwater systems like rice paddies and irrigation channels, where contamination is concentrated.

Hydropower development and infrastructure fragmentation

Dams and hydroelectric projects throughout the Western Ghats and Southeast Asia have altered river flow, submerged natural habitats, and fragmented otter territories. These developments destroy riverine connectivity, which otters rely on to forage and disperse. For the nirnai subspecies, hill streams once connected across forest corridors are now interrupted by roads, canals, and dams — leading to isolated, unsustainable populations. Infrastructure development often proceeds without proper environmental assessments, disregarding the needs of aquatic species like otters.

Climate change and habitat drying

Shifts in monsoon patterns, increased droughts, and rising temperatures are affecting the wetlands and rivers that Asian Small-clawed Otters depend on. Reduced water flow in dry seasons can strand otter families and eliminate key feeding pools. In the Western Ghats, erratic rainfall is already altering seasonal resource use patterns for A. c. nirnai, increasing their vulnerability to disturbance (Narasimmarajan et al., 2024). Climate stress, combined with other threats, compounds the likelihood of local extinctions.

Geographic Range

Their range stretches across India, Nepal, Bhutan, Bangladesh, Myanmar, Thailand, Laos, Cambodia, Vietnam, Malaysia, Indonesia (including Borneo, Sumatra, Java), the Philippines (Palawan), China and Taiwan. In India, they are found in Arunachal Pradesh, Assam, West Bengal, Odisha, Kerala, Karnataka and Tamil Nadu. They are absent from large swathes of their historical range, including the Western Himalayas.

The genetically distinct subspecies Aonyx cinereus nirnai is restricted to the Western Ghats’ Moyar River and surrounding hill streams. This biodiverse stronghold is currently being cleared for palm oil plantations, hydropower projects, and invasive monocultures, putting this population in grave danger.

Diet

Asian Small-clawed Otters are primarily crustacean specialists. Their diet includes crabs, snails, molluscs, fish such as mudskippers and catfish, amphibians, insects, snakes, and even rodents. Scat analysis in Malaysia and Thailand revealed crabs to be the most frequent prey, often making up over 80% of their diet.

In rice fields and mangroves, they may leave molluscs out in the sun to soften the shells before eating — a sign of their intelligence and adaptability. Seasonal changes in water levels influence the availability of prey, leading to subtle shifts in their dietary habits throughout the year.

Mating and Reproduction

These otters are monogamous and breed year-round, with gestation lasting 62–86 days. Litters typically include 2–7 pups. In captivity, they start breeding at around 18 months of age, and may live up to 11 years. Parents build nests together before birth and both contribute to raising the young. Pups begin to open their eyes around five weeks old and start swimming with their mothers at around three months.

FAQs

How many Asian Small-clawed Otters are left in the wild?

There is no global population estimate, but their numbers are declining throughout their range. In China and Cambodia, they are now almost locally extinct, with only a few scattered sightings since 2006 (Li & Chan, 2017; Heng et al., 2016). Surveys in India confirm drastic reductions in range, especially from west to east, over the past 60 years (Hussain et al., 2011).

What is the lifespan of the Asian Small Clawed Otter?

In captivity, Asian Small-clawed Otters can live up to 11 years (Crandall, 1964). Their lifespan in the wild is likely shorter due to environmental pressures and poaching.

Why are Asian Small Clawed Otters endangered?

They are threatened by habitat loss from logging, plantations, palm oil, pollution, and construction of dams. In the Western Ghats, the genetically distinct nirnai subspecies is losing habitat to hydropower development and palm oil monocultures, which destroy the narrow, rocky streams they depend on (Narasimmarajan et al., 2024).

Do Asian Small-clawed Otters make good pets?

Absolutely not. Keeping them as pets is cruel and selfish. They are wild animals with complex social and environmental needs. The illegal pet trade is driving them towards extinction, causing immense suffering and ripping family groups apart (Gomez & Bouhuys, 2018). Buying a pet otter and also sharing pet otter content on social media fuels this horrific industry — if you love otters, protect them in the wild! Do not buy them as pets or support this cruel industry!

How is palm oil affecting their survival?

Palm oil plantations have destroyed vast tracts of mangroves, peat swamps, and wetlands in Malaysia, Indonesia, and now India. In the Western Ghats, forests are being cleared for palm oil under the guise of “afforestation” and “reforestation” using non-native species. This directly threatens the survival of A. c. nirnai (Narasimmarajan et al., 2024).

Take Action!

Raise your voice for the smallest otter in the world. Every time you shop, Boycott palm oil and reject products linked to deforestation and wetland destruction. Support indigenous-led conservation efforts in the Western Ghats and Southeast Asia.

Never buy otters or exotic animals — their capture fuels extinction. Adopt a plant-based lifestyle to protect wetlands, rivers and biodiversity. #BoycottPalmOil #Boycott4Wildlife #Vegan #BoycottMeat

Support Asian Small-Clawed Otters by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Gomez, L., & Bouhuys, J. (2018). Illegal otter trade: An analysis of seizures in selected Asian countries (1980–2015). TRAFFIC. https://www.traffic.org/site/assets/files/2402/illegal-otter-trade-asia.pdf

Narasimmarajan, K., Mathai, M. T., Hayward, M. W., & Palanivel, S. (2024). Lesser-known sentinels: Role of environmental variables influencing the seasonal resource use patterns of Asian Small-clawed Otters (Aonyx cinereus nirnai) in the Western Ghats Moyar River Biodiversity Hotspots. IUCN Otter Spec. Group Bull., 41(5), 296–310. https://iucnosgbull.org/Volume41/Narasimmarajan_et_al_2024a.pdf

Wikipedia contributors. (n.d.). Asian small-clawed otter. Wikipedia. https://en.wikipedia.org/wiki/Asian_small-clawed_otter

Wright, L., de Silva, P.K., Chan, B.P.L., Reza Lubis, I. & Basak, S. 2021. Aonyx cinereusThe IUCN Red List of Threatened Species 2021: e.T44166A164580923. https://dx.doi.org/10.2305/IUCN.UK.2021-3.RLTS.T44166A164580923.en. Accessed on 17 April 2025.

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The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

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How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

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3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

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Learn about other animals endangered by palm oil and other agriculture

Global South America S.E. Asia India Africa West Papua & PNG

Asian Small-clawed Otter Aonyx cinereus

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Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

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Western Parotia Parotia sefilata

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#animals #Asia #AsianSmallClawedOtterAonyxCinereus #Bangladesh #Bhutan #Borneo #Boycott4wildlife #BoycottMeat #BoycottPalmOil #Cambodia #China #climateChange #coffee #dams #deforestation #ecocide #ForgottenAnimals #hunting #illegalPetTrade #India #Indonesia #infrastructure #Laos #Mammal #mangroves #Myanmar #Nepal #Otter #Otters #PalmOil #palmOilDeforestation #palmoil #pesticide #pet #Philippines #poachers #poaching #pollution #rivers #SouthEastAsia #Sumatra #tea #Thailand #vegan #Vietnam #vulnerable #VulnerableSpecies #Wetlands
#News: 🐻🌿 Protecting #Peru’s grasslands vital for #vulnerable Spectacled #bear. #Research finds bears prefer foraging areas with negative impact of #meat #soy and #palmoil agriculture. #BoycottMeat #BoycottPalmOil 🌴🥩⛔️ #Boycott4Wildlife @palmoildetect.bsky.social https://wp.me/pcFhgU-9OQ?utm_source=mastodon&utm_medium=Palm+Oil+Detectives&utm_campaign=publer
DYK #banks fund industries harming animal beings? Protecting #animals in #rainforests and on farms starts with our #supermarket choices. Embrace kindness for animals and forests — be #vegan 🌱❤️🐾 #BoycottMeat #Boycott4Wildlife @palmoildetect.bsky.social Learn more: https://wp.me/pcFhgU-7N6?utm_source=mastodon&utm_medium=Palm+Oil+Detectives&utm_campaign=publer

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

IUCN Red List Status: Vulnerable

Location: Indonesia (Sulawesi)

Found across the northern peninsula of Sulawesi in Indonesia, including from the northern tip to the Isthmus of Gorontalo, in primary forest, mangroves, and disturbed habitats with dense cover.

The Gursky’s spectral tarsier Tarsius spectrumgurskyae, also known locally as Wusing, is a recently recognised species of tarsier from northern Sulawesi. Listed as Vulnerable by the IUCN, they have lost more than 30% of their habitat in the past two decades. #Deforestation for #palmoil and #timber, agricultural encroachment, illegal logging, and the #pettrade all threaten their fragile populations. Their survival depends on wild spaces thick with shrubby undergrowth—the very places being rapidly erased. If you love unique #primates like the spectral #tarsier, use your voice and wallet to protect their forest home. #BoycottPalmOil #Boycott4Wildlife

https://youtu.be/FqrauXhLBcY

Known locally as ‘Wusing’, Gursky’s Spectral #Tarsiers have enormous moon-like eyes to help them see in dark forests 🌛👀😽 #Palmoil and the #pet trade are serious threats. Help them survive when you #Boycottpalmoil 🌴🚜❌ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/02/22/gurskys-spectral-tarsier-tarsius-spectrumgurskyae/

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Found in tree hollows of #Sulawesi #Indonesia, tiny #primates 🐵🧐 Gursky’s Spectral #Tarsiers are #carnivores with their food, #insects 🪲🦗 being poisoned by #palmoil and #pesticides ☠️ Fight for them! #Boycottpalmoil #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/02/22/gurskys-spectral-tarsier-tarsius-spectrumgurskyae/

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Appearance & Behaviour

Gursky’s spectral tarsiers also known locally as ‘Wusing’ are hauntingly beautiful tiny #primates with enormous, forward-facing eyes that shine like twin moons in the night. These tiny nocturnal primates have a soft, greyish pelage and elongated fingers adapted for gripping tree branches. They are famed for their extreme leaping ability, known as vertical clinging and leaping (VCL), allowing them to spring through the forest canopy with precision and grace.

Highly social and vocal, they live in monogamous or polygamous groups of 2–11 individuals. At dawn, their eerie territorial duets echo through the forest just before they return to their sleeping sites in dense foliage or tree cavities. They are shy, elusive, and deeply dependent on forest structure to hide, hunt, and sleep.

Threats

Habitat Loss from Illegal Logging

The primary threat to Gursky’s spectral tarsier is the ongoing destruction of Sulawesi’s forests due to illegal logging. These small nocturnal primates depend on dense understorey vegetation and tree cavities for shelter and foraging. When forests are cleared, their sleeping sites vanish and prey becomes scarce, forcing them into smaller, fragmented patches of habitat. Even moderate disturbance causes a sharp drop in population density—from over 150 individuals/km² to as few as 45 in degraded areas (Merker, 2003).

Agricultural Expansion and Palm Oil Plantations

Much of the Gursky’s Spectral Tarsier’s lowland habitat has already been converted to palm oil and timber agriculture, and expansion continues. Between 1990 and 2000, 15.26% of Sulawesi’s forests were cleared for crops, with at least 10% more lost since then (Salim, pers. comm. in IUCN, 2020). Palm oil plantations are one of the main drivers of this forest conversion. Although the species can survive in agroforestry and disturbed areas, their numbers drastically decline when natural vegetation is replaced with monocultures.

Pesticide Exposure from Nearby Farms

Chemical pesticides used in adjacent agricultural zones contaminate the tarsiers’ insect prey, leading to bioaccumulation and poisoning. Tarsiers consume a diet entirely composed of live animal prey, mostly insects, which makes them highly vulnerable to pesticide residues. Ingestion of contaminated insects can lead to neurological damage, reproductive failure, or death, further weakening populations in edge habitats near farmlands.

Predation by Domestic Animals

Domestic dogs and cats introduced into forested areas pose a significant predation risk to tarsiers. These animals often accompany humans into disturbed or agricultural areas, where they hunt or scavenge. Tarsiers are small-bodied, slow on the ground, and often descend to low levels of the forest, making them easy targets. Predation by pets fragments already-vulnerable populations and disrupts group dynamics.

Illegal Capture for the Pet Trade

Although not widespread, the illegal pet trade is an emerging threat. Gursky’s spectral tarsiers are occasionally taken from the wild to be sold in local markets or online. These sensitive, nocturnal animals suffer tremendously in captivity, often dying due to stress, malnutrition, or improper care. Removing them from the wild also breaks apart family groups and contributes to long-term population decline.

Geographic Range

Gursky’s spectral tarsier is endemic to Indonesia, restricted to northern Sulawesi, from the northern tip of the peninsula to the Isthmus of Gorontalo. Their habitat includes lowland primary forests, secondary growth, mangroves, and areas with some human disturbance, such as agroforestry and selectively logged landscapes. However, their density drops dramatically as habitat degradation increases.

Diet

Their diet is 100% carnivorous, consisting entirely of live animal prey. They primarily consume insects such as moths and crickets but also hunt small vertebrates like frogs and lizards. Their night-time hunting is punctuated by bursts of movement and quiet observation as they stalk their prey through the understorey.

Mating and Reproduction

Although detailed reproductive data are scarce for this species, Gursky’s spectral tarsiers likely follow similar breeding patterns to other tarsiers. They are known to breed throughout the year, producing one offspring at a time after a gestation period of about six months. The young are born furred and open-eyed, clinging to their parent as they learn to navigate the trees.

FAQs

How many Gursky’s spectral tarsiers are left in the wild?

Precise population numbers of these tarsiers are not known, but density estimates suggest that in pristine habitats, up to 156 individuals per km² may exist (Gursky, 1997). However, in heavily degraded areas, this number can plummet to as low as 45 individuals per km² (Merker, 2003). Their fragmented range and habitat loss make accurate counts difficult, but population declines are expected to continue if deforestation is not halted.

What is their lifespan in the wild?

While specific data for Tarsius spectrumgurskyae is not available, other tarsier species can live between 8–12 years in the wild. In captivity, where threats like predation are removed, their lifespan may be slightly longer. However, these animals do not thrive in captivity and should never be kept as pets.

What challenges do they face in conservation?

One major challenge is habitat degradation due to logging, agriculture, and the spread of palm oil plantations. Though they can tolerate some disturbance, their population density drops significantly with increasing habitat destruction. Additionally, their small size and elusive nature make them difficult to monitor, and they are sometimes misidentified as other tarsier species, complicating conservation strategies.

Do Gursky’s spectral tarsiers make good pets?

No. These sensitive and social primates should never be kept as pets. Capturing them from the wild is cruel and contributes directly to population collapse. It destroys their family groups, causes immense suffering, and feeds into illegal wildlife trade networks. If you care about their survival, never buy a wild animal and advocate against exotic pet ownership.

Take Action!

The future of the Gursky’s spectral tarsier hangs by a thread. Forests are falling at an alarming rate, replaced with monocultures and poisoned with pesticides. Speak up. Refuse to fund deforestation-driven industries. Boycott palm oil. Protect what’s left of Sulawesi’s dwindling forests and support indigenous-led conservation efforts. Never buy wildlife as pets. #BoycottPalmOil #Boycott4Wildlife #Vegan #BoycottMeat

Support Gursky’s Tarsiers by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Shekelle, M., Groves, C. P., Maryanto, I., & Mittermeier, R. A. (2017). Two new tarsier species (Tarsiidae, Primates) and the biogeography of Sulawesi, Indonesia. Primate Conservation, 31, 37–56. https://researchportalplus.anu.edu.au/en/publications/two-new-tarsier-species-tarsiidae-primates-and-the-biogeography-o

Shekelle, M. 2020. Tarsius spectrumgurskyaeThe IUCN Red List of Threatened Species 2020: e.T162336422A162336580. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T162336422A162336580.en. Accessed on 06 April 2025.

Wikipedia. (n.d.). Gursky’s spectral tarsier. Retrieved April 6, 2025, from https://en.wikipedia.org/wiki/Gursky%27s_spectral_tarsier

How can I help the #Boycott4Wildlife?

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3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

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Learn about other animals endangered by palm oil and other agriculture

Global South America S.E. Asia India Africa West Papua & PNG

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

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Sunda Flying Lemur Galeopterus variegatus

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Western Parotia Parotia sefilata

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A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

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#animals #Boycott4wildlife #BoycottMeat #BoycottPalmOil #BoycottPesticides #carnivores #deforestation #ForgottenAnimals #GurskySSpectralTarsierTarsiusSpectrumgurskyae #hunting #illegalPetTrade #Indonesia #insects #nocturnal #PalmOil #palmOilDeforestation #palmoil #pesticide #pesticides #pet #petTrade #pettrade #poaching #Primate #primates #primatology #Sulawesi #tarsier #tarsiers #timber #vegan #vulnerable #VulnerableSpecies

Sunda Flying Lemur Galeopterus variegatus

Sunda Flying Lemur Galeopterus variegatus

Locations: Thailand, Cambodia, Vietnam, Laos, Myanmar, Peninsular Malaysia, Singapore, Brunei, Indonesia (Java, Sumatra, Kalimantan, Bali), and Borneo

The Sunda flying lemur, also known as the Malayan flying lemur or Malayan #colugo, silently glides through the tropical forests of Southeast Asia, relying on ancient forests to survive. Despite their name, they are not true lemurs, nor do they fly—they are gliders, and among the most skilful in the world. This species is experiencing population declines in several parts of their range. They are threatened by #deforestation from #timber, #palmoil plantations, and #hunting by local communities. Forest loss, particularly in #Java, #Vietnam, and #Thailand, is fragmenting their populations and endangering their survival. Use your wallet as a weapon every time you shop and protect these sensitive creatures #BoycottPalmOil #Boycott4Wildlife

https://youtu.be/NUukaAK4YSI

The elegant #Sunda flying #lemur AKA #Colugo can glide 100m through trees 🪽🕊️ in #Sumatra #Kalimantan and #Borneo. Totally reliant on trees, #palmoil is a major threat to them 😿 Fight back and🌴🩸🔥☠️🧐🚫 #Boycottpalmoil #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/02/08/sunda-flying-lemur-galeopterus-variegatus/

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Hauntingly beautiful gliding #mammal, the Malayan #Colugo/ Sunda Flying #Lemur uses a cape-like skin membrane to slide 100’s of metres through the #rainforests of SE #Asia. Fight for them and #Boycottpalmoil 🌴🙊🤮🚜🔥❌ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/02/08/sunda-flying-lemur-galeopterus-variegatus/

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Appearance & Behaviour

Sunda flying lemurs are hauntingly beautiful gliding mammals, with their large, forward-facing eyes adapted for night vision and a delicate, kite-shaped membrane of skin called a patagium stretching from their neck to their fingertips, tail, and toes. This structure allows them to glide over 100 metres through the forest canopy, losing as little as 10 metres in elevation. On the ground, they are nearly helpless, but in the trees, they move with astonishing agility. These quiet, nocturnal mammals spend their days curled up in tree hollows or nestled in the dense fronds of coconut trees, becoming active at dusk when they begin foraging.

Threats

Palm oil deforestation

The widespread clearing of tropical rainforest to establish palm oil plantations is one of the greatest threats to the Sunda flying lemur. These gliders rely heavily on continuous tree canopy for movement, foraging, and breeding. When forests are fragmented or entirely removed for palm oil, flying lemurs become stranded, exposed to predators, and unable to access food or shelter. This process has caused severe habitat degradation across Peninsular Malaysia, Sumatra, and Borneo.

Human persecution and hunting

In Java and some other regions, Sunda flying lemurs are hunted by local communities, including the Baduy Tribe, who increase hunting activity every four years as part of cultural practices. Though the species yields little meat, they are still killed for consumption or perceived nuisance. Hunting disrupts already fragile populations, particularly in areas where habitat loss has already reduced numbers and isolated groups.

Logging and forest fragmentation for timber

Commercial and illegal logging contribute to the rapid degradation of forests across Southeast Asia. Even selective logging can cause fragmentation, which limits the flying lemur’s ability to glide and forces them to descend to the ground—where they are highly vulnerable to predators and human threats. Logging roads also increase human access to remote forests, further accelerating hunting and forest conversion.

Competition with invasive species

In degraded habitats and plantations, Sunda flying lemurs face increased competition for food and nesting sites from invasive and generalist species such as the Plantain Squirrel (Callosciurus notatus). These squirrels are more adaptable and can dominate food sources, leaving less for the more specialised colugo. Competition like this puts additional stress on the already fragile populations of flying lemurs, especially in fragmented or edge habitats.

Urban expansion and infrastructure development

Rapid urbanisation across Southeast Asia has resulted in the encroachment of cities and towns into previously forested areas. Roads, buildings, hydroelectric dams and agricultural expansion sever vital canopy corridors and isolate populations, making gliding impossible in many urban landscapes. As a result, Sunda flying lemurs are forced to navigate unsuitable environments, increasing their risk of vehicle collisions, electrocution from power lines, and conflict with humans.

Weak protections and lack of enforcement

Although the Sunda flying lemur is legally protected in several countries, enforcement is often weak or inconsistent. In areas like Sarawak and Java, data on current populations is outdated or incomplete, making it difficult to assess trends or plan effective conservation strategies. Without strong protections and ongoing monitoring, habitat loss and hunting will continue to drive the species toward future vulnerability or extinction.

Geographic Range

Sunda flying lemurs are found across Southeast Asia, including Thailand, Cambodia, Vietnam, Laos, southern Myanmar, Peninsular Malaysia, Singapore, Brunei, and Indonesia (Java, Bali, Sumatra, Kalimantan, and Borneo). They are patchily distributed, with population declines noted in Java and possibly Sarawak. They occur in both primary and secondary forests, and are sometimes seen in plantations and gardens—but dense forest canopy is critical for their survival. Populations in disturbed habitats are less viable due to limited gliding space and reduced food availability.

Diet

The Sunda flying lemur feeds primarily on young leaves, buds, shoots, flowers, and fruits of a wide variety of forest trees. In Bako National Park, Sarawak, they have been observed feeding on over 12 tree species, with Buchanania arborescens making up over 50% of their diet. They also consume tree sap and have even been seen licking bark for water and minerals. Interestingly, they have been recorded feeding on ants (Paratrechina longicornis) in rare cases, highlighting their adaptability in changing environments.

Mating and Reproduction

After a gestation period of about 60 days, females give birth to a single young, which clings to the mother’s belly and is cradled within the folds of the patagium. The mother’s gliding membrane acts like a living pouch, offering warmth and protection as she climbs and glides through the treetops. Not much else is known about their mating systems or breeding intervals, but juveniles stay with their mothers until they are old enough to glide on their own.

FAQs

How many Sunda flying lemurs are left in the wild?

Exact population numbers are unknown, but the species is believed to be in slow decline. Localised extinctions are suspected in parts of Java and mainland Southeast Asia due to hunting and habitat fragmentation. While still widespread, their dependence on intact forests makes them vulnerable to ongoing deforestation (Boeadi & Steinmetz, 2008).

How long do Sunda flying lemurs live?

In the wild, their lifespan is estimated to be around 10–15 years, though this can vary depending on threats and environmental conditions. Data from wild populations are limited due to their elusive, nocturnal habits (Wikipedia, n.d.).

Why are they threatened by palm oil?

Palm oil plantations destroy the lowland tropical forests that flying lemurs depend on. Unlike other adaptable mammals, colugos require dense canopy cover for safe gliding, resting, and breeding. When forests are cleared, these gliders lose their ability to navigate safely, exposing them to predators and starvation. The conversion of rainforest into monoculture plantations has led to significant declines in habitat quality across their range (Lim et al., 2013; Nasir & Abdullah, 2009).

Do Sunda flying lemurs make good pets?

Absolutely not. Sunda flying lemurs are wild animals with specialised needs. They are not domesticated, and keeping them as pets leads to extreme stress, injury, or death. Capturing these animals for trade disrupts family groups and contributes to their extinction. If you care about flying lemurs, advocate against the exotic pet trade and never support it.

What conservation efforts are underway?

National laws protect the Sunda flying lemur in many range countries, and studies have been conducted in places like Bako National Park and Singapore. However, much stronger protection is needed, particularly in habitat protection and indigenous-led conservation. Conservationists recommend protecting forest patches, especially those with >95% canopy cover, to ensure their survival (Lim et al., 2013).

Take Action!

Protect the Sunda flying lemur by choosing only products that are 100% palm oil-free. Avoiding palm oil directly combats deforestation and preserves vital canopy corridors these animals depend on. Support indigenous-led agroecology and forest protection movements. Never support the exotic pet trade or keep wild animals in captivity. Every purchase you make has the power to either destroy or safeguard their rainforest homes. #BoycottPalmOil #Boycott4Wildlife

Support Sunda Flying Lemurs by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Boeadi & Steinmetz, R. 2008. Galeopterus variegatusThe IUCN Red List of Threatened Species 2008: e.T41502A10479343. https://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T41502A10479343.en. Accessed on 06 April 2025.

Lim, N. T-L., Giam, X., Byrnes, G., & Clements, G. R. (2013). Occurrence of the Sunda colugo (Galeopterus variegatus) in the tropical forests of Singapore: A Bayesian approach. Mammalian Biology, 78(1), 63–67. https://doi.org/10.1016/j.mambio.2012.06.008

Nasir, D., & Abdullah, M. T. (2009). Foraging ecology of the Sunda colugo (Galeopterus variegatus) in Bako National Park, Sarawak, Malaysia. Malayan Nature Journal, 61(4), 285–294. https://www.researchgate.net/publication/290610443_Foraging_ecology_of_the_sunda_colugo_galeopterus_variegatus_in_bako_national_park_sarawak_malaysia

Wikipedia. (n.d.). Sunda flying lemur. Retrieved April 6, 2025, from https://en.wikipedia.org/wiki/Sunda_flying_lemur

How can I help the #Boycott4Wildlife?

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

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Wildlife Artist Juanchi Pérez

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Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

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Anthropologist and Author Dr Sophie Chao

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Health Physician Dr Evan Allen

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The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

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How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

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3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

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Learn about other animals endangered by palm oil and other agriculture

Global South America S.E. Asia India Africa West Papua & PNG

Sunda Flying Lemur Galeopterus variegatus

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Western Parotia Parotia sefilata

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Capped Langur Trachypithecus pileatus

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Mountain Tapir Tapirus pinchaque

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Saola Pseudoryx nghetinhensis

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Read more about RSPO greenwashing

Lying Fake labels Indigenous Land-grabbing Human rights abuses Deforestation Human health hazards

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

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#animals #Asia #Borneo #Boycott4wildlife #BoycottMeat #BoycottPalmOil #Brunei #Cambodia #colugo #dams #deforestation #ForgottenAnimals #glidingMammal #humanWildlifeConflict #hunting #hydroelectric #Indonesia #Java #Kalimantan #Laos #lemur #Malaysia #Mammal #Myanmar #nocturnal #PalmOil #palmOilDeforestation #palmoil #poaching #rainforests #Sumatra #Sunda #SundaFlyingLemurGaleopterusVariegatus #Thailand #timber #Vietnam #VulnerableSpecies

Western Parotia Parotia sefilata

Western Parotia Parotia sefilata

Location: West Papua (Illegally occupied by Indonesia)

Found exclusively in the montane forests of the Vogelkop Peninsula and Wandammen Mountains in Indonesian-occupied West Papua, this species is confined to isolated pockets of ancient, cloud-draped rainforest.

The Western Parotia Parotia sefilata, also called the Arfak Parotia, is a stunning bird-of-paradise of #WestPapua known for their mesmerising, ballerina-like courtship dance. Male #birds fan their iridescent flank plumes into a skirt and dazzle females with precise steps and shimmering throat shields. Although listed as Least Concern in 2016, this designation is dangerously outdated. The forests these rare birds call home have suffered catastrophic #deforestation in recent years due to the explosion of #palmoil plantations. These once-pristine regions are now fragmented and rapidly vanishing. Immediate action is needed to protect the Western Parotia from becoming the next victim of extinction.#BoycottPalmOil #Boycott4Wildlife

https://youtu.be/nNqV1BfSsZY

Unusual behaviours like mounting reveal complexity to the lives of Western #Parotia, thrilling #birds of paradise in #WestPapua. #Palmoil is a major threat. Fight for them and indigenous peoples #Boycottpalmoil #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/01/25/western-parotia-parotia-sefilata/

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With jet black plumage 🖤 and bright green 💚 wattles, male Western Parotia #birds 🐦🦜🦚 of paradise gleam like scaly armour when they dance 🎶 Resist against their #extinction in #WestPapua when you #Boycottpalmoil 🌴🚫 #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/01/25/western-parotia-parotia-sefilata/

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Appearance & Behaviour

Male Western Parotias are instantly recognisable by their jet-black plumage, metallic green wattles that gleam like scaled armour, and three distinctive wire-like head plumes that curl outward from each side of the crown—features that inspired the species name, derived from the Latin sex filum, meaning ‘six threads.’ A dazzling inverted silver triangle on their head flashes during display, perfectly offset by their elegant black flank plumes which form a flared skirt in courtship. Females are more subdued, clad in streaky brown feathers, allowing them to blend into the forest understorey.

This species of bird-of-paradise is polygynous. Males gather in exploded leks—loosely spaced display grounds—where they clear leaf-littered forest floors to create courts. On these makeshift stages, they perform intricate displays to attract females, combining pirouettes, head bobs, feather shimmers, and rapid shakes. A 2024 behavioural study also observed rare alternative mating tactics, including homosexual mounting and sneak copulation attempts by female-plumaged birds, suggesting untapped behavioural complexity (MacGillavry et al., 2024).

Threats

The Western Parotia is officially listed as Least Concern, but this 2016 classification dangerously underrepresents their current reality. Since that assessment, massive deforestation for timber and palm oil has devastated much of their limited range, particularly across the Vogelkop Peninsula and Wandammen Mountains. The threats are mounting and accelerating due to the following drivers:

Palm oil deforestation

Large-scale clearing of primary rainforest to make way for industrial palm oil plantations is now rampant across the Bird’s Head (Vogelkop) Peninsula. Even remote montane forests where Western Parotias lek and nest are not safe, as new roads are cut to expand plantation frontiers.

Timber deforestation

Commercial timber extraction is removing centuries-old forest giants that the Western Parotia depends on for fruit, foraging and nesting. Logging roads also fragment habitat, increase fire risk, and provide access to previously undisturbed ecosystems.

Deforestation for mining, rubber and infrastructure projects

Government-backed agribusiness schemes are encouraging monocultures such as oil palm and rubber, which completely erase the forest understory and tree canopy vital for the Parotia’s food and shelter.

Mining concessions in West Papua—often enforced with military support—are rapidly opening up forests in the Wandammen Mountains, overlapping with the Parotia’s habitat. Road construction to access mines and plantations is fragmenting the landscape irreparably.

Climate change-induced extreme weather

The species is restricted to highland forest. As temperatures rise and human pressures encroach from below, their montane habitat may shrink to mountaintop fragments, leaving no room for retreat.

Colonial exploitation, military conflict and suppression of Indigenous land rights:

Indigenous Melanesians have stewarded Papuan forests for millennia. Today, state and corporate projects continue to override Indigenous consent, leading to ecological destruction and social injustice hand-in-hand.

These combined threats pose a serious and immediate danger to the survival of the Western Parotia. Without urgent action to halt deforestation and recognise Indigenous land sovereignty, the species could slide rapidly toward extinction unnoticed.

Geographic Range

Western Parotias are found exclusively in the montane and submontane rainforests of the Vogelkop Peninsula and the Wandammen Mountains in West Papua. They are forest specialists, requiring old-growth rainforest to support their complex courtship behaviour and nesting needs. Since their last assessment in 2016, widespread forest loss has occurred across these regions, particularly from illegal logging and palm oil expansion, putting their long-term survival in serious jeopardy.

Diet

Western Parotias primarily feed on fruits—especially figs—and supplement their diet with arthropods. Their foraging occurs at various forest levels, but they prefer mid-canopy and understorey, where fruiting trees and insect-rich foliage are abundant.

Mating and Reproduction

Courtship and nesting behaviour are marked by sexual division of labour. Only the female builds the nest and raises the chick. Nests are often camouflaged in dense foliage. Although the precise breeding season remains unclear, it is believed to vary by elevation and fruiting cycles. Male courtship is heavily influenced by evolutionary modularity in display traits, which have diverged over time, giving rise to the extravagant variety seen across the Parotia genus (Scholes, 2008).

FAQs

How many Western Parotias are left in the wild?

There are no exact population estimates for the Western Parotia. The IUCN has classified them as Least Concern, but this was based on assessments from 2016. Since then, vast tracts of their habitat have been lost. Without a recent survey, the current population trend is unknown, but it is likely decreasing due to ongoing deforestation (BirdLife International, 2016).

How long do Western Parotias live?

In the wild, birds-of-paradise often live between 5 to 10 years, though lifespan data for this species is limited. In captivity, related species have reached over 15 years, but no long-term studies exist for Parotia sefilata specifically.

What challenges do conservationists face protecting this species?

Conservation of the Western Parotia is complicated by a lack of recent data and the remoteness of their habitat. The Vogelkop and Wandammen regions are undergoing rapid transformation due to illegal logging and palm oil expansion, often facilitated by state-backed infrastructure projects. These forests also fall within contested indigenous lands, and conservation solutions must be rooted in indigenous sovereignty to be effective.

Is the Western Parotia affected by the exotic pet trade?

Unlike parrots and smaller songbirds, Western Parotias are not commonly targeted for the exotic pet trade, likely due to their remote habitat and specialised diet. However, increased accessibility due to road construction could change this. It is essential to remain vigilant and oppose any wildlife trafficking.

Take Action!

Use your wallet as a weapon to stop extinction by boycotting palm oil. Always choose products that are 100% palm oil-free to avoid contributing to the deforestation that is pushing the Western Parotia closer to extinction. Support indigenous-led conservation efforts in West Papua and call for greater transparency around the spread of monoculture plantations. Protect the mesmerising courtship rituals of these remarkable birds by fighting to keep their forests standing. #BoycottPalmOil #Boycott4Wildlife #Vegan #BoycottMeat

Support the Western Parotia by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

BirdLife International. (2016). Parotia sefilata. The IUCN Red List of Threatened Species 2016: e.T22706181A93913206. Retrieved 6 April 2025, from https://www.iucnredlist.org/species/22706181/93913206

MacGillavry, T., Janiczek, C., & Fusani, L. (2024). Video evidence of mountings by female-plumaged birds of paradise (Aves: Paradisaeidae) in the wild: Is there evidence of alternative mating tactics? Ethology. https://doi.org/10.1111/eth.13451

Scholes, E. (2008). Evolution of the courtship phenotype in the bird of paradise genus Parotia (Aves: Paradisaeidae): homology, phylogeny, and modularity. Biological Journal of the Linnean Society, 94(3), 491–504. https://doi.org/10.1111/j.1095-8312.2008.01012.x

Wikipedia contributors. (n.d.). Western parotia. Wikipedia. Retrieved 6 April 2025, from https://en.wikipedia.org/wiki/Western_parotia

How can I help the #Boycott4Wildlife?

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

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Sign Up

Join 3,176 other subscribers

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Read more

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Read more

Anthropologist and Author Dr Sophie Chao

Read more

Health Physician Dr Evan Allen

Read more

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

Read more

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

Read more

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Pledge your support

Learn about other animals endangered by palm oil and other agriculture

Global South America S.E. Asia India Africa West Papua & PNG

Western Parotia Parotia sefilata

Keep reading

Capped Langur Trachypithecus pileatus

Keep reading

Mountain Tapir Tapirus pinchaque

Keep reading

Saola Pseudoryx nghetinhensis

Keep reading

Tucuxi Sotalia fluviatilis

Keep reading

Frill-Necked Lizard Chlamydosaurus kingii

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Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

Lying Fake labels Indigenous Land-grabbing Human rights abuses Deforestation Human health hazards

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Read more

#animals #Bird #birds #Birdsong #Boycott4wildlife #BoycottMeat #BoycottPalmOil #deforestation #EndSongbirdTrade #extinction #ForgottenAnimals #FreeWestPapua #gold #goldMining #hunting #indigenous #military #PalmOil #palmOilDeforestation #palmoil #Parotia #poaching #songbird #songbirds #vegan #vulnerable #VulnerableSpecies #WestPapua #WesternParotiaParotiaSefilata #WestPapua

Jaguars vs Cows: JBS Fuelling Biodiversity Collapse in Brazil’s Forests

A damning Global Witness investigation exposes how JBS, the world’s largest meat company, is directly linked to deforestation in some of Brazil’s most biodiverse ecosystems, including the Amazon and Pantanal. Despite greenwashing promises, JBS continues sourcing cattle from ranchers involved in illegal deforestation in areas that overlap with protected jaguar territory—pushing iconic species like the jaguar closer to extinction. The company’s failure to track indirect suppliers undermines greenwashing and zero-deforestation claims. JBS is financed by British Bank Barclays who made a whopping $1.7 billion from this decimation of the environment. This scandal highlights the urgent need to divest your wealth from Barclays until they stop funding JBS. Also in the supermarket you can #BoycottMeat and be #vegan for not only farmed animals but also for wild animals like jaguars and countless others. #BoycottPalmOil #Boycott4Wildlife

#Meat giant 🥩☠️ #JBS is driving #deforestation in the #Amazon🐆 ❌ Jaguars are losing their home to cows killed for burgers 🤮💰 Billions in profits to #Barclays and zero accountability 📣 Divest NOW! NO to #BigCat #extinction! #Boycott4Wildlife #Vegan https://palmoildetectives.com/2026/01/21/jaguars-vs-cows-jbs-fuelling-biodiversity-collapse-in-brazils-forests/

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Global Witness. (2024, May 15). Jaguars vs cows: The biodiversity crisis under JBS’s shadow. https://globalwitness.org/en/campaigns/forests/jaguars-vs-cows-the-biodiversity-crisis-under-jbs-shadow/

A Global Witness investigation has found that jaguars, vital guardians of Amazonian ecosystems and critical apex predators — are under siege as Brazil’s forests are cleared at alarming rates. New findings from Global Witness show that over 27 million hectares of the jaguar’s historic habitat in Brazil have been razed for industrial agriculture, particularly cattle ranching, between 2014 and 2023.

A single supplier to JBS, the world’s largest meat company, illegally cleared over 1,200 hectares of protected jaguar habitat in just a decade. Across the jaguar’s range in Pará and Mato Grosso states, 75% of farms linked to JBS’s supply chain broke environmental laws in the past five years. Deforestation and habitat fragmentation have devastated jaguar populations, classified as ‘Near Threatened’ on the IUCN Red List.

Jaguars are a keystone species, crucial to maintaining ecosystem health. Their decline ripples throughout the Amazon and Cerrado, triggering wider biodiversity loss. Meanwhile, financial institutions in Europe, China, and the US continue backing JBS despite its environmental breaches, profiting while forests fall.

With Brazil hosting COP30 this year, Global Witness is calling for world leaders to show real commitment. They must strengthen laws regulating supply chains and finance to protect remaining forests and Indigenous territories, or risk missing the 2030 deadline to halt deforestation.

Without urgent action, jaguars — once revered as guardians of the rainforest — could vanish forever.

The Global Witness investigation found over 27 million ha of jaguar habitat – an area larger than the UK – had been converted to agricultural land in the states of Mato Grosso and Pará as of 2023.

“We decided to investigate the loss of jaguar habitat driven by industrial agriculture because jaguars are a keystone species. They play a crucial role in stabilising ecosystems and maintaining biodiversity in areas such as the Amazon and Cerrado. When their territories are destroyed, the entire ecosystem suffers,” said Marco Mantovani, a Global Witness investigator leading the data analysis.

A road in Brazil which drives deep into jaguar habitat. Ricardo de O. Lemos/ShutterstockJaguar Panthera onca by Ecuadorian artist Juanchi PérezA jaguar in the jungle of southern Mexico. Mardoz/Shutterstock

“Deforestation is a solvable issue, but it’s one where there is stalling, a lack of political will to actually meet the global agreement to end forest loss by 2030,” said Global Witness’s Reid, referring to the landmark pledge reached at COP26 in Glasgow, Scotland, in 2021.

She told Mongabay that she hopes that at COP30 countries will put forward plans “to actually deliver [on] their commitments when it comes to forest loss.”

British banking giant Barclays was a main financier of the megaproject and made an extraordinary $1.7 billion from financing JBS, surpassing 30 other global financial institutions bankrolling the meatpacker. A key way to take action is to not only boycott meat in solidarity to cows and jaguars, but to also divest your funds from Barclays.

Global Witness. (2024, May 15). Jaguars vs cows: The biodiversity crisis under JBS’s shadow. https://globalwitness.org/en/campaigns/forests/jaguars-vs-cows-the-biodiversity-crisis-under-jbs-shadow/

ENDS

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The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

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How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

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3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

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Capped Langur Trachypithecus pileatus

Capped Langur Trachypithecus pileatus

IUCN Red List Status: Vulnerable

Location: India, Bhutan, Bangladesh, Myanmar

This species inhabits subtropical and tropical dry forests, primarily in the foothills and highlands south of the Brahmaputra River and across fragmented patches in northeastern South Asia.

The capped #langur (Trachypithecus pileatus) is a graceful and beautiful leaf #monkey found across northeastern #India, #Bhutan, #Bangladesh, and #Myanmar. Sadly, they are listed as #Vulnerable on the IUCN Red List due to rapid population declines from #deforestation, logging, agriculture, and the devastating impacts of #palmoil plantations. Once widespread, their numbers have nearly halved in some regions like Assam due to the accelerating loss of native forest cover. Directly threatened by palm oil and monoculture expansion, this species is now confined to small, isolated forest fragments. Take action every time you shop and #BoycottPalmOil #Boycott4Wildlife

https://youtu.be/NhpTmfZuNV4

In the forests of #Bangladesh 🇧🇩 and northern #India 🇮🇳 lives a remarkable #primate with soulful hazel eyes 🐵🐒 on the verge of #extinction from #palmoil #deforestation. Help the Capped #Langur and #Boycottpalmoil 🌴🔥🚫 #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/01/11/capped-langur-trachypithecus-pileatus/

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The intelligent and social Capped #Langur 🙉🐒🐵 is under pressure from #palmoil #deforestation and hunting in #India 🇮🇳 Troops are interbreeding with Phayre’s #langurs to survive. Fight for them and #Boycottpalmoil 🌴☠️❌ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2026/01/11/capped-langur-trachypithecus-pileatus/

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Appearance & Behaviour

With their black-tufted crown, pale fur, and soulful eyes, capped langurs are among the most visually distinctive primates in the Eastern Himalayas. Their fur ranges from silver-grey to golden orange, with darker limbs and a black cap that gives them their name. They move gracefully through the canopy, rarely descending to the forest floor except for play or social grooming.

Capped langurs live in unimale, multifemale groups with sizes ranging from 8 to 15 individuals. They spend most of their time feeding (up to 67%) or resting (up to 40%), engaging in complex social grooming and vocal communication. Daily movements range from 320–800 metres across fragmented habitats of 21–64 hectares. Grooming is an important social activity, with females often taking turns in allomothering behaviour.

Threats

Palm oil, teak and rubber monoculture plantations

The spread of oil palm and other monoculture crops such as teak and rubber is destroying the capped langur’s native forests at an alarming rate. These industrial plantations eliminate the diverse tree species that capped langurs rely on for food and shelter, leaving them with little to survive on. Once a landscape is cleared and replaced with palm oil or other single crops, it becomes a green desert devoid of biodiversity, pushing the species closer to extinction. In regions like Assam and Bangladesh, palm oil is a major driver of habitat fragmentation and degradation, especially in forest corridors that once connected populations.

Timber deforestation

Widespread illegal logging, often fuelled by demand for timber and firewood, is rapidly eroding the capped langur’s habitat. Fruiting and lodging trees that are vital to their survival are cut down, leaving forests patchy and disconnected. As their home ranges shrink, capped langur groups are forced into smaller fragments, increasing their vulnerability to predators, food shortages, and inbreeding. In some areas, this pressure has led to local extinctions or the collapse of entire populations.

Slash-and-burn agriculture

Slash-and-burn agriculture destroys habitat for capped langurs and often brings them into closer contact with human settlements, increasing conflict and risk of hunting or roadkill. Forest recovery from this can take decades—time the capped langur simply doesn’t have.

Hunting and the illegal pet trade

Capped langurs are hunted for their meat, pelts, and for sale in the illegal pet trade. In many tribal and rural areas of Assam, Arunachal Pradesh, and Manipur, they are still targeted despite legal protections. Their pelts are used to make traditional knife sheaths, and infants are often captured after killing their mothers, then sold as pets. This exploitation causes severe suffering and has a devastating impact on group structures, leading to long-term population decline.

Roads cut into rainforests for mines and tea plantations

As forests are cut into smaller patches for roads, mining, tea plantations, and settlements, capped langur populations become increasingly isolated. Small, disconnected populations face higher risks of inbreeding, loss of genetic diversity, and eventual extinction. In some regions, such as Tinsukia and Sonitpur, populations have already disappeared due to this fragmentation. The collapse of corridors also disrupts daily movement, feeding patterns, and access to mates—placing enormous stress on surviving individuals.

Hybridisation with other species

Due to the rapid degradation of natural habitats, capped langurs are increasingly forming mixed-species groups with the closely related Phayre’s langur (Trachypithecus phayrei). Recent studies in northeast Bangladesh confirm genetically that hybridisation is occurring, which could result in the eventual cyto-nuclear extinction of the capped langur lineage. Although hybridisation can happen naturally, in this case it is being driven by human-induced fragmentation, forcing species into overlapping territories with fewer options for mates. This phenomenon is both a symptom and a driver of their decline, complicating conservation efforts.

Mining, infrastructure, and political conflict

Open-cast coal mining, limestone extraction, and petroleum exploration have all contributed to the destruction of capped langur habitat across Assam and Nagaland. Infrastructure projects, such as highways and border fences, not only destroy habitat directly but also block animal movements and isolate populations. In border regions, armed conflict and territorial skirmishes have already extirpated capped langurs from several reserves, such as the Nambhur and Rengma forests. Weak law enforcement allows habitat destruction to continue unchecked in many regions.

Geographic Range

Capped langurs are found in northeastern India (Arunachal Pradesh, Assam, Meghalaya, Nagaland, Manipur, Mizoram, and Tripura), Bhutan, northwestern Myanmar, and northeastern and central Bangladesh. They occur at elevations from 10 to 3,000 metres across hill forests, riverine reserves, and protected areas. However, their range is now severely fragmented by human development, with some populations disappearing from former strongholds due to mining, conflict, and agricultural encroachment.

Diet

Primarily folivorous, the capped langur’s diet includes mature and young leaves, petioles, seeds, flowers, bamboo shoots, bark, and occasionally caterpillars. They forage on more than 43 plant species, with favourites including banyan (Ficus benghalensis), sacred fig (Ficus religiosa), Terminalia bellerica, and Mallotus philippensis. Seasonal availability influences their feeding patterns, but they consistently prefer fruiting and flowering trees.

Mating and Reproduction

Breeding usually occurs in the dry season, with birthing concentrated between late December and May. The gestation period lasts about 200 days, and the interbirth interval is approximately two years. Only parous females participate in allomothering, allowing new mothers time to forage and recover, a behaviour rare among langurs and considered a form of altruism.

FAQs

How many capped langurs are left in the wild?

Exact numbers are uncertain, but estimates suggest the population in Assam has declined from 39,000 in 1989 to approximately 18,600 between 2008 and 2014 (Choudhury, 2014). This halving reflects habitat loss and increasing fragmentation, particularly in Upper Assam and the Barak Valley.

What is the average lifespan of a capped langur?

While data is limited, langurs of this genus generally live 20–25 years in the wild. Captive lifespans may extend slightly due to the absence of predators and constant food supply, though such conditions often lead to stress.

Why are capped langurs under threat?

Their decline is due to relentless deforestation, palm oil and monoculture plantations, illegal logging, and road-building. Slash-and-burn agriculture and mining also play a major role. Capped langurs are hunted in some regions for meat, pelts, and as pets, particularly in Assam, Arunachal Pradesh, and Nagaland.

Do capped langurs make good pets?

Absolutely not. Capped langurs are intelligent, social beings that rely on complex forest habitats and close-knit family groups. Removing them from the wild fuels extinction and causes immense trauma. Many die during illegal capture and transport. Keeping them as pets is a selfish act that destroys lives. If you care about capped langurs, never support the exotic pet trade!

What are the major conservation challenges for capped langurs?

The biggest issues are hybridisation with other primate species, habitat fragmentation, palm oil expansion, and human-wildlife conflict. The 2018 study in Satchari National Park found that local attitudes toward conservation vary by occupation, education, and gender, which means education and outreach are crucial. A big challenge is the rise in hybridisation with sympatric Phayre’s langurs, driven by habitat degradation—this poses long-term genetic risks (Ahmed et al., 2024).

Take Action!

Capped langurs are vanishing before our eyes, driven to the brink by out-of-control palm oil expansion, deforestation, and development. You can help save them.

Refuse to buy products made with palm oil. Support indigenous-led conservation in northeast India and the Eastern Himalayas. Demand governments halt the destruction of old-growth forests and restore wildlife corridors. Spread awareness and challenge the illegal wildlife trade. #BoycottPalmOil #Boycott4Wildlife #Vegan #BoycottMeat

Support the Capped Langur by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Ahmed, T., Hasan, S., Nath, S., Biswas, S., et al. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology, 46(1), 210–228. https://doi.org/10.1007/s10764-024-00459-x

Das, J., Chetry, D., Choudhury, A.U., & Bleisch, W. (2020). Trachypithecus pileatus (errata version published in 2021). The IUCN Red List of Threatened Species 2020: e.T22041A196580469. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T22041A196580469.en

Hasan, M.A.U., & Neha, S.A. (2018). Group size, composition and conservation challenges of capped langur (Trachypithecus pileatus) in Satchari National Park, Bangladesh. Retrieved from https://www.researchgate.net/publication/339550399

Wikipedia. (n.d.). Capped langur. Retrieved April 6, 2025, from https://en.wikipedia.org/wiki/Capped_langur

How can I help the #Boycott4Wildlife?

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

Enter your email address

Sign Up

Join 3,173 other subscribers

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Read more

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Read more

Anthropologist and Author Dr Sophie Chao

Read more

Health Physician Dr Evan Allen

Read more

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

Read more

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

Read more

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Pledge your support

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