There are roughly 7,000 species of true crabs on Earth, and nearly all of them scuttle sideways. That quirky gait is so ...

Every crab you have ever watched skitter across a beach was performing a trick that dates to the early Jurassic. A research ...

Add Yahoo as a preferred source to see more of our stories on Google. A petition to the National Oceanic and Atmospheric Administration Fisheries to extend endangered species protection to horseshoe ...

Conservation groups argue horseshoe crabs should be listed as an endangered species to help protect their habitat and reduce harvesting. Almost two dozen conservation groups are asking federal ...

Every spring, horseshoe crabs return to Long Island Sound beaches, where scientists and volunteers are working to protect a ...