Robot crab studies crab mating behavior

Scientists have created a robot crab named "Wavy Dave" to study crab mating behavior. The beefy-armed bot was sent to interact with real crabs, but things got awkward—females found him "a bit odd," and some males tried to fight him.

Scientists created a robot crab named "Wavy Dave" to mimic the claw-waving behavior of real fiddler crabs. In tests, Wavy Dave engaged in these displays with live crabs—sometimes winning, sometimes getting roughed up. It’s a quirky but fascinating experiment in animal-robot interaction.