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 ...

A parade of mangroves and now, crabs, are heading north. Atlantic mangrove fiddler crabs have been found nearly 200 miles further from their historic northern limit in Jacksonville, Fla., according to ...

David Johnson: So in 2014, we were on a muddy bank in the marsh up here in Massachusetts, and I saw this small crab scuttle across the mud bank and pop into a hole. And so I dug out the crab, and it ...

Fiddler crabs are intertidal ectotherms that inhabit thermally dynamic mudflat and mangrove environments. Their body temperature is a function of environmental heat exchange, behavioural adjustments ...

For the first time, a study led by University of Oxford researchers has listened in to the fascinating courtship displays of fiddler crabs using geophones. The findings, published in the Journal of ...