Scientists apparently underestimated the aggression of itty-bitty male fiddler crabs when they deployed a friendly robot ...

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.

Researchers test fiddler crab mating strategies by introducing a robot with a waving claw, dubbed “Wavy Dave.” CNN speaks to ...

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

Between May and July 2022, Wilde and his team created “Wavy Dave,” an artificial fiddler crab with a robotic claw that could ...

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 sighting, he thought, was very strange. Fiddler crabs weren’t supposed to be north of Cape Cod, let alone Boston. The year was 2012, and a marine heatwave had just occurred.

Jennions and fellow ANU researchers Richard Milner and Patricia Backwell studied the behavior of fiddler crabs living in mud flats off the African country of Mozambique in October and November ...

The sighting, he thought, was very strange. Fiddler crabs weren’t supposed to be north of Cape Cod, let alone Boston. The year was 2012, and a marine heatwave had just occurred.

Fiddler crabs, soldier crabs, and other ghost crab species have long, vertically oriented eyestalks that are set close together. Having eyes on stalks gives the crab a wider visual field.

Fiddler crabs can be left-handed or right-handed and in most species the difference is 50/50. But there are some species that are almost always either left- or right-handed.