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

Crabs are often seen as familiar ocean creatures, but some species are far stranger than most people realize. This video ...

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

When researchers discover fossils of species that are new to science it’s only natural that they attempt to find a place for them in the colossal tree of life, matching them up with related species ...

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

Horseshoe crabs are also harvested for use as bait by the commercial whelk and eel fisheries. Even though horseshoe crab ...

"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 ...