Lybia leptochelis, the boxer crab, picks up and carries a pair of stinging anemones with its claws to ward off enemies, though this has also earned them the slightly less hardcore nickname of “pom-pom crabs.” They’ll fight other crabs if they’re short of these gauntlets, and if they only have one, will rip it in half, and the anemone will grow into a cloned pair.