Researchers have built a robot crab that can compete in claw-waving displays with real fiddler crabs, but "Wavy Dave" doesn't ...

Wavy Dave the robot crustacean has been showing scientists how male fiddler crabs respond when they see a fellow crab waving.

In the new study, a robot crab—nicknamed Wavy Dave—waved its claw on a mudflat teeming with male fiddler crabs. The paper, ...

A tiny robot fiddler crab is helping environmental scientists better understand the complexities of animal mating rituals and ...

Male fiddler crabs have one oversized claw, which they use to attract females by standing outside their burrow and waving.