When scientists deposited “Wavy Dave” the robot crab on a mudflat in Portugal, they hoped to learn more about how males compete for mates by waving their huge claws. But the little machine was ...

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

Scientists at the University of Exeter have created a robotic crab, nicknamed Wavy Dave, to understand how male fiddler crabs ...