Ghost shark haunting the depths of the ocean

The goblin or ghost shark, Mitsukurina owstoni, is a deep ocean shark, the sole living species in the family Mitsukurinidae. The most distinctive characteristic of the goblin shark is the shape of its head with a long, trowel-shaped, beak-like snout, much longer than other sharks’ snouts with mostly pink skin, and long, protuding jaws.

They is found throughout the oceans of the world.
The pink coloration, unique among sharks, is due to blood vessels underneath a semi-transparent skin (which bruises easily), thereby causing the coloring. The fins have a bluish appearance. The front teeth are long and smooth-edged, while the rear teeth are adapted for crushing.
Up to 25% of the goblin shark’s body weight can be its liver. It is currently not understood why the shark has such a large liver.

Goblin sharks hunt by sensing the presence of prey with electro-sensitive organs  snout, due to the absence of light in the deep waters where it swims. Once a shark finds its prey, it suddenly protrudes its jaws, while using a tongue-like muscle to suck the victim into its sharp front teeth. Some prey they have been known to feed on include deep-sea rockfish, cephalopods and crustaceans.

rare footage of a ghost:  http://www.youtube.com/watch?v=kTzm4yKgrgg

excerpts from wikipedia

image courtesy of: http://www.practicalfishkeeping.co.uk/pfk/images/cc_goblin_shark2_peter_halasz.jpg

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