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

Horseshoe crabs have been around for 400 million years, but without protection, they could vanish from SC coast, ...

"Meet the Mitten Crab, an invasive species native to East Asia that has found its way into New York waters," New York's Department of Environmental Conservation said Hauke-Christian Dittrich/picture ...

The bairdi crab and king crab are two distinct crab varieties. Bairdi is a snow crab variety known as a queen crab. Opilio and bairdi crabs reign supreme as the most widely distributed commercial ...

Most terrestrial plants and animals left the ocean a single time in their evolutionary history to live ashore. But crabs have seemingly scuttled out of the sea more than a dozen times, with at least ...

The crabs' numbers have been depleted in recent years because of a loss of habitat and their value for testing new medicines.