Deepest-Dwelling Creature Could Be 'Mephisto'

 "The world's deepest dwelling multicellular organisms have just been identified, according to a paper in the latest issue of Nature. If you were to dig down about 2.2 miles, you might encounter Halicephalobus mephisto ('Mephisto') and its other nematode relatives.

You probably wouldn't want to go there, though.

Food at such a depth consists of bacteria. Temperatures are unbearably hot. There's no sex."
via Discovery News/read more