The male fiddler crabs use their one oversized claw to attract females, waving it with a frantic energy outside their burrows.

Male fiddler crabs have one oversized claw, which they use to attract females by standing outside their burrow and waving. The post Scientists use robot crab ‘Wavy Dave’ to study fiddler crab mating appeared first on Talker.

In the new study, a robot crab—nicknamed Wavy Dave—waved its claw on a mudflat teeming with male fiddler crabs. The paper, published in the journal Proceedings of the Royal Society B, is titled "Biomimetic robots reveal flexible adjustment of sexual signaling in a wild invertebrate."