The findings suggest that their famous lateral movement evolved just once. It may have helped the animals rapidly spread and ...

A study of 50 crab species in Japan traces the iconic sideways walk to a single ancestor, suggesting the trait drove the ...

The study also points to environmental conditions as another factor behind the evolutionary success of crabs. The researchers ...

Each spring, horseshoe crabs flood Delaware Bay to spawn, feeding migratory shorebirds and supplying medicine with their blue blood. A New Jersey volunteer program is working to keep them from dying ...