Yes, Virginia, there is a Goblin Shark

"My mommy always said there were no monsters - no real ones - but there are."

- Newt  Aliens (1986)

This thing has been kicking around the 'nets' for a while now, but in case you've missed it let me introduce you to the Goblin Shark.  It's a real life creature that seems to have a little bit of Alien DNA...