The term "fiddler crab" refers to about 100 species and subspecies of crabs from the genus Uca. They’re found along beaches and br...

Fiddler crabs are small crustaceans with a distinctive enlarged claw. They live on beaches, mud flats and marshes throughout the Chesapeake ...

You won’t see the Chinese mitten crab’s mugshot on a milk carton, but researchers want you to keep an eye out for it anyway. The mitten ...