The Mystery of Crab Boxing

This is a typical example of wild caught crab holding an anemone in each claw. Photo by Yisrael Schnytzer

Boxer crabs stand out amid their crustacean brethren due to their amazing tool use -- a mutualistic relationship between these tiny crabs and the living sea anemones they employ as weapons. In this episode of Stuff to Blow Your Mind, Robert and Christian look at a pair of studies that expand on their amazing use of weapons.

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