
Newest J-Pod orca calf missing, presumed dead
The latest observation of J-Pod on Oct. 23 did not find J64 with its mother and the rest of the pod, says the Center for Whale Research.
Times Colonist
At 3,5 meters long and with an unprecedented cranial structure, the river dolphin fossil found in the Amazon is the largest ever recorded on the planet and rewrites the history of aquatic mammals.
At 3,5 meters long, the Pebanista yacuruna is the largest river dolphin ever discovered, found in the Peruvian Amazon and dated back 16 million years.
CPG Click Petróleo e Gás
When a polar bear kills, it doesn’t just eat. It feeds a whole ecosystem
CBC Lite

Frontiers | A survey of detection techniques for sperm whale and dolphin echolocation clicks
Echolocation clicks, emitted by Sperm Whales (Physeter macrocephalus) and Dolphins for foraging, echolocation and socialization, serve as bioindicators for m...
Frontiers
NOAA reports spike in whale entanglements, latest bad news in year of threats in and out of the ocean
The National Oceanic and Atmospheric Administration recently reported a spike in entangled whales off California in 2024, leading scientists and marine mammal biologists to worry about how this year will go as winter fishing seasons get underway.
Phys.orgCan bowhead whales with their 200-year lifespan help us to slow ageing?
Researchers find Earth’s longest-living mammal is particularly good at fixing faulty DNA – and cold water may help
The Guardian
Scientists spot vaquita calves in Mexico, fueling hope for the world’s rarest marine mammal
The world’s most endangered marine mammal, the vaquita porpoise, is still hanging on in the waters off Mexico’s northwest coast — and, against all odds, it’s reproducing.
AP News‘Animal cruelty’: two-year-old humpback whale found dead in NSW shark net causes anger
It is the first whale to have died out of 15 entangled in shark nets on Australia’s east coast so far this year
The Guardian
Absence of zombie worms on submerged whale bones sparks concern about species loss
In a scary movie, creatures that can't always be seen often provide the biggest frights for characters and viewers alike. In deep-ocean research, the absence of one particular creature—the so-called zombie worm, "the bone devourer" Osedax—can also be troubling, a harbinger of species loss and ecosystem decline due to the long-term effects of climate change.

Killer Whale Genomes Reveal Long-Term Mutation Purging
In a remarkable advance in the field of evolutionary genomics, recent research has uncovered compelling evidence that killer whale populations inhabiting high latitude regions have undergone extensive