These little sharks (compare to pencil in photo) like to take bites out of anything and everything. They swim in schools and use their sharp teeth to bite whales and seals. The bites are like round plugs, as if cut out with a cookie cutter. Marks made by cookiecutter sharks have been found on a wide variety of marine mammals and fishes, as well as on submarines, undersea cables, and even human bodies. It also consumes whole smaller prey such as squid.
