With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

The humble horseshoe crab, an ancient species crawling seafloors since before the dawn of the dinosaurs, was durable enough ...

If you have ever looked closely into a rockpool along the U.K. coastline, you may have been lucky enough to find a tiny hermit crab scuttling about. What you might not realize is that hermit crabs are ...

Here’s what you’ll learn when you read this story: Carcinization is the separate, five-time evolution of crabs. Parallel evolution isn’t unheard of by any means, but crabs have done it a lot. Their ...

Marylanders and visitors love the blue crab as a seafood delicacy, but they chose it as the state crustacean for more than ...

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

Recent studies hint that crabs, lobsters, and other crustaceans experience pain and discomfort in ways we hadn't fully understood before.

Carcinization is the separate, five-time evolution of crabs. Parallel evolution isn’t unheard of by any means, but crabs have done it a lot. Their repeated similar evolution makes them interesting to ...