Unexpected life in a bizarre place.

Focuses on hydrothermal vent worms, or worms which live in the superheated water of the ocean where cracks in the earth's surface vent water and chemicals. Comments from Bob Feldman, a senior scientist at Diversa Corp., which collects bacteria living in extreme conditions; The temperatures that the Alvinellid worms can withstand; How the vents are small patches of life in deep sea.