In a new piece for The Conversation, evolutionary paleobiologist Matthew Wills revisits the internet's favorite idea: carcinization, a type of convergent evolution in which crabs have evolved, separately, five different times within the same large group of animals. Not only that, though. Some crabs have devolved in key ways, while others have re-evolved when that devolution did not, perhaps, prove fruitful enough. It may never have made sense to expect an animal that walks sideways to follow the rules at all.
Wills teaches at the Milner Centre for Evolution at the University of Bath in the southwestern English county of Somerset. His laboratory group specifically studies how the fossil record can help us develop a more complete understanding of how life has evolved into its many, many strands over time—the ones that have survived as well as the ones that have not. The fossil record can help us piece together times of flourishing evolution before history's many mass extinctions.
In a new piece for The Conversation, evolutionary paleobiologist Matthew Wills revisits the internet's favorite idea: carcinization, a type of convergent evolution in which crabs have evolved, separately, five different times within the same large group of animals. Not only that, though. Some crabs have devolved in key ways, while others have re-evolved when that devolution did not, perhaps, prove fruitful enough. It may never have made sense to expect an animal that walks sideways to follow the rules at all.
Wills teaches at the Milner Centre for Evolution at the University of Bath in the southwestern English county of Somerset. His laboratory group specifically studies how the fossil record can help us develop a more complete understanding of how life has evolved into its many, many strands over time—the ones that have survived as well as the ones that have not. The fossil record can help us piece together times of flourishing evolution before history's many mass extinctions. |
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