Male fiddler crabs are lopsided, with one claw that seems about the right size and one very large claw. As you might expect, one function of the larger claw is to attract females. The males drum with ...

While cruising the Texas coast this week during my Beachcombing survey, I came across one of the most entertaining — and ecologically important — residents of our shoreline: the fiddler crab. Easily ...

A robot crab has helped scientists understand how male fiddler crabs compete over females. Male fiddler crabs have one oversized claw, and they attract females by standing outside their burrow and ...