Mastodawn

https://inaturalist.org Observation of the Day for Apr 16, 2026: Dardanus insignis [Animalia], by user: rochanaturaleza
[via @inatrepostbot]
https://www.inaturalist.org/observations/350240526
Costa Azul, 27400 Departamento de Rocha, Uruguay
2026-04-14T08:20:00-03:00
Credit: (c) Martin Abreu, all rights reserved
See more: https://www.inaturalist.org/projects/inat-observation-of-the-day
#inaturalist #inaturalistorg #citizenscience #dardanusinsignis #dardanusinsignis #costaazul #27400departamentoderocha #uruguay #animalia #animals #arthropods #crustaceans #typicalcrustaceans #malacostracans #decapodsisopodsandallies #decapodsandkrill #decapods #crabslobstersshrimpsandallies #anomurans #hermitcrabs #lefthandedhermitcrabs

D C Fitzgerald Apr 11

Sally Lightfoot crab (Grapsus grapsus)..Galápagos Islands, west coast Americas...its name is said to come from its ability to run in all four directions...those back ridges serve a purpose, helping reinforce the exoskeleton against crashing waves. #wildlife #nature #crustaceans #science #ecology #photo

D C Fitzgerald Apr 4

Male Fiddler Crab (genus Uca, Austruca or Tubuca). They have an unusual diet, they're detritivores. They use the small claw to scoop up mouthfuls of sediment, sift out the algae and microbes, and then spit the sand back out in little pellets. #wildlife #nature #biology #crustaceans #photo

Vegan FTA Apr 4

Do you know which species of crustaceans are taken from the wild, and how? 🦀 👉 Find out more: https://veganfta.com/blog/2026/03/29/how-crustaceans-are-caught-in-the-wild/ #crustaceans #marineanimals #seafood

Rolento Mar 24

Acorn #Barnacles look like little #clams but apparently they're #hermaphroditic #crustaceans -- little #Seattle details

Vegan FTA Mar 21

Lobsters and crabs should not be exploited in any way, but there are at least five ways that their exploitation during farming can be considered especially cruel. 🦞🦀 https://veganfta.com/blog/2026/03/17/5-examples-of-the-cruelty-of-lobster-and-crab-farming/ #lobsters #crabs #crustaceans

TKSST • seethis.tv 🌈🪐✨Mar 17

🦀🛡️ In the #ChesapeakeBay, the biggest threat to a young blue crab isn't a hungry #fish – it's another blue crab.

A long-term study explains that while these #crustaceans are notoriously cannibalistic, juveniles have a better chance of surviving if they stick to the ultra-shallow waters of coastal estuaries where bigger #crabs can't easily reach them.

👉 https://www.popsci.com/environment/cannibalism-blue-crabs/

#wildlife #marinebiology #science #ecology #nature #biology #underwater

Blue crabs have a serious cannibalism problem

But growing up can help these famed Chesapeake crustaceans.

Popular Science

Public Domain Image Archive Mar 9

Illustration by Anton Seder, from Das Thier in der Dekorativen Kunst (1896).

Source: The Getty / Internet Archive

Available to buy as a print.

https://pdimagearchive.org/images/727b2b83-b1f1-4d50-aafc-620fa1db6928

#lobsters #art-nouveau #beasts #sea-life #modernism #ornament #crustaceans #art #publicdomain

Jon Sullivan Mar 4

One of the highlights of my day was when William Harland, a talented ecology undergrad here at #LincolnUniversityNZ, stopped by my office to show me his photos of temnocephalid flatworms. These distinctive squat tentacled flatworms live in colonies on NZ's freshwater crayfish, koura, and eat scraps left over when the koura feed. They apparently cause no bother to the koura.

William found these at Poolburn Reservoir in central Otago.

Amazing!

The photo is CC-BY William Harland: https://inaturalist.nz/observations/341041723
Here are more photos of these crazy flatworms on #iNaturalistNZ: https://inaturalist.nz/observations?verifiable=true&taxon_id=868829&place_id=6803&preferred_place_id=6803

#invertebrates #flatworms #NaturalHistory #NZ #Freshwater #crayfish #crustaceans #nature #crayfish

Vegan FTA Feb 26

Lobsters are amazing crustaceans who have been sadly exploited by humans for millennia, ignoring how remarkable and fascinating they are. 🦞 👉 Learn more: https://veganfta.com/blog/2026/02/25/lobsters-are-amazing-animals/ #lobster #crustaceans #animal