SIOUX CITY, Iowa (KTIV/Gray News) - A man in Iowa found something very unusual stuck in a vending machine. Soso Mesa said he took a photo after several people tried to use a second-floor vending ...

Male fiddler crabs have one dramatically larger claw that they use during mating rituals and to fight rivals. A tiny robot fiddler crab is helping environmental scientists better understand the ...

Fiddler crabs use their large claws to wave down females and didn’t take kindly to a robot newcomer in Portugal. Joe A. Wilde Like many people around the world, animal behavior researcher Joe Wilde ...