http://www.wired.com/wiredscience/2013/10/absurd-creature-goblin-shark/
Believe it or not, the more you read about this creature, the stranger it gets.
Aiding this vacuum effect is the goblin shark’s highly developed, highly mobile basihyal — a structure analogous to a tongue, except made out of cartilage — making the creature sort of like the Gene Simmons of the deep. As the jaws fire out, the giant basihyal is depressed, providing even more suction, though not substantially more rock and roll, as far as scientists can tell.
Click through to see more photos of this strange, fascinating creature and read the full article: http://www.wired.com/wiredscience/2013/10/absurd-creature-goblin-shark/