and also from New Scientist : The 12 coolest animals of 2010
For instance this olm
A blind little amphibian with translucent skin – once thought to be an infant dragon – offers valuable clues in the quest for the elixir of life.
The olm is a small salamander that spends its whole life in cave water, and has no eyes or skin pigmentation.
They may be able to live for over 100 years, perhaps because of a hitherto unsuspected quirk of their metabolism.