Hot-Water Worms May Use Bacteria as Shield

Scientists who recently returned from a deep-ocean expedition said they are a step closer to understanding how life thrives around cracks spewing scalding water at the bottom of the ocean.

The scientists were exploring hydrothermal vents along the East Pacific Rise about 1,200 miles (2,000 kilometers) west of Costa Rica as part of the Extreme 2004: Exploring the Deep Frontier expedition.