A robot posing as a tough male crab recently challenged real crabs to a showdown during mating season — and the videos are hilarious. The robot, nicknamed "Wavy Dave," infiltrated fiddler crab (Afruca ...
In the animal world, attracting a mate often comes down to a show of skill. Birds sing. Deer fight. Some crabs wave. For one species called the waving crab, this gesture is everything. Males raise and ...
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