Zombie worms (Osedax) are deep-sea annelids that consume the bones of dead whales and other marine life, relying on symbiotic bacteria rather than a mouth or stomach to digest nutrients. Osedax is a genus of siboglinid polychaetes, commonly called snot worms or bone-eating worms. Osedax is Latin for 'bone devourer', derived from the worms' unique ecological niche of bone-boring.