Laboratory studies have also found it causes several types of deformities in fiddler crabs.

When the tide is out, fiddler crabs search the beach for food.

The setting is so quiet that sunbathers can hear the skittering of fiddler crabs.

We leaned against rails, watching fiddler crabs rustle across dark mud.

Studies on the daily rhythmicity of the fiddler crab, Uca.

One was much larger than the other, like the asymmetry of a fiddler crab.

Outside, thousands of fiddler crabs swarmed in large muddy pens on the ground.

Each male fiddler crab stands out in front of his burrow waiting for the females to return from eating.

The fiddler crab provides an excellent example of positive allometry.

And we do know that the fiddler crab has been hurt.