In evolutionary biology, carcinisation (or carcinization)'s a hypothesised process whereby a crustacean evolves into a crab-like form from a non-crab-like form. The term was introduced by L. A. Borradaile, who described it as "one of the many attempts of Nature to evolve a crab." Carcinisation's believed to have occurred independently in at least five groups of decapod crustaceans, most notably king crabs,which most scientists believe evolved from hermit crab ancestors (there's still some debate… (
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