Far beneath the surface of the oceans, the water is inky black. Some of the world's strangest creatures make their home in this permanent darkness. See how the deep-sea anglerfish draws in its prey with its luminous fishing rod. Find out how the Multi-colored glow of the firefly squid can save its life. Take a look at a world far from the sun where animals live on underwater volcanoes.

Includes glossary and index.