5. Zombie Worm (Osedax priapus)
The Zombie Worm is a master of macabre dining, discovered in the 2010s feasting on whale bones scattered across the seafloor. With a root-like body, it secretes acids to dissolve bone and access the rich nutrients inside—a rare and remarkable adaptation in the animal kingdom. This worm’s unique lifestyle has intrigued scientists and challenged our notions of survival in the deep. Read more about the Zombie Worm at National Geographic.