Cookiecutter shark
The cookiecutter shark (Isistius brasiliensis), also commonly known as the cigar shark, is a small dogfish shark that prefers warm oceanic waters, usually near islands. This shark prefers deep waters and has been recorded in waters as deep as 3.7 km. It is a diurnal shark, meaning that it makes a nightly migration to the surface and then descends back down during the day. The cookie cutter shark owes its name to the cookie shaped wounds it leaves in its prey. Funny fact that