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Carcinisation (American English: carcinization) is a form of convergent evolution in which non-crab crustaceans evolve a crab-like body plan. The term was introduced into evolutionary biology by Lancelot Alexander Borradaile, who described it as "the many attempts of Nature to evolve a crab". [2]
Eventually, everything turns into a crab. This particular type of convergent evolution — when animals develop similar traits despite coming from different families — has even been given a ...
The remaining group, called Pleocyemata, then diverged between the swimming shrimp groupings and the crawling/walking group called Reptantia, consisting of lobsters and crabs. High species diversification can be traced to the Jurassic and Cretaceous periods, which coincides with the rise and spread of modern coral reefs , a key habitat for the ...
Abludomelita obtusata, an amphipod. Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are a part of the subphylum Crustacea (/ k r ə ˈ s t eɪ ʃ ə /), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods ...
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Warmer water caused the crabs’ metabolism to increase, but there wasn’t enough food to keep pace. Billions of crabs ultimately starved to death , devastating Alaska’s fishing industry in the ...
The Cretaceous crab revolution was a major diversification event of brachyuran crustaceans (also known as true crabs) that took place during the Cretaceous period, from 145 to 66 million years ago. [ 1 ] [ 2 ] Nearly 80% of modern groups of crabs originated during this event. [ 3 ]
Callichimaera perplexa is a species of small crabs known from the Cretaceous Churuvita Group of Colombia and the Frontier Formation of the United States. [2] Because it possesses a strange combination of anatomical features, it is said to be the "platypus of crabs". [3]