The American Horseshoe Crab is about as close as you can get to a creature that shared the Earth with dinosaurs, but the ...

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

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

"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 ...

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 ...

An environmental advocacy group is suing the federal government to force regulators to decide if the American horseshoe crab, ...

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

A species of crab has been found to play an "unheralded role" in the breakdown of microplastic particles, according to ...