Deep Sea Goblin Shark:

The goblin shark is a rare, poorly known species of deep-sea shark. Sometimes called a "living fossil", it is the only ex-tant representative of the family Mitsukurinidae, a lineage some 125 million years old. This species looks unlike any other shark, with a long flattened snout, highly protrusible jaws containing prominent nail-like teeth, and pink coloration. Most adults are between three and four meters (10–13 ft) long, though it can grow considerably larger. It inhabits upper continental slopes and submarine canyons around the world at depths greater than 100 m (330 ft), with mature individuals found deeper than juveniles.(National Geographic)