Photograph by Michel Braunstein, My Shot

Stingrays often rest on the seafloor, sometimes partially buried in the sand and color-camouflaged from predators like sharks. The ray also deters would-be attackers with a sharp, venomous tail barb. The barb can deliver a lethal blow even to humans, but incidents are extremely rare. Stingrays are fairly docile and typically strike only when provoked.