Animals Keep Evolving Into Crabs, and Scientists Don’t Know Why

Newsweek

BY ED BROWNE ON 10/14/21 AT 9:12 AM EDT

It’s true: Crabs keep turning up in nature, and it’s bothering scientists so much that they’ve been given federal grants to get to the bottom of it.

The phenomenon is so widely known that it’s been given a name—carcinization, a term that’s been in use for over 140 years. Through this process, crabs, the beach critters we all know and love, have evolved at least five times from separate groups of crustaceans, Newsweek has been told.

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