The female fiddler crab has two small, symmetrical claws; the male has one small and one oversize. “The large claw is all about the initial attraction,” says marine biologist Zachary Darnell ...

A decade ago, I stood on the muddy banks of the Great Marsh, a salt marsh an hour north of Boston, and pulled a thumb-sized ...

Male and female fiddler crabs are easily distinguished by looking at their claws. The females have small claws while the ...

The Artstor website will be retired on Aug 1st. Limnology and Oceanography Vol. 56, No. 5, 2011 A behavioral mechanism for dispersal in ... The genus Uca (fiddler crabs) includes both estuarine and ...

I was looking at a fiddler crab – a species that wasn’t supposed to be north of Cape Cod, let alone north of Boston. As it turned out, the marsh I was standing in would never be the same.