Bridging an ancient gap

hydrothermal vent Credit @ Ralph White _ Corbis

Tiny crabs, tubeworms, and other sea life live next to a hot hydrothermal vent. The heat and minerals expelled by the vent allow these creatures to survive without sunlight at the ocean’s floor. Credit@Ralph White/CORBIS

Tiny crabs, tubeworms, and other sea life live next to a hot hydrothermal vent. The heat and minerals expelled by the vent allow these creatures to survive without sunlight at the ocean’s floor. Credit@Ralph White/CORBIS