Off the coast of Japan, thousands of feet below the surface, the seafloor explodes with heat. Cracks and vents in the rocky sediment allow boiling seawater heated by subterranean magma to shoot ...

Ammonites' shells make the animals look most like nautiluses ... Zoë explains, 'Nautilus survived probably because it lives deeper in the ocean. Deeper environments were less affected by what was ...

The green turtle is a large, weighty sea turtle with a wide, smooth carapace, or shell. It inhabits tropical and subtropical coastal waters around the world and has been observed clambering onto ...

and sea angels (right) that lose their shell when they reach adulthood. These creatures have adapted from a life on the sea floor to a life in the open ocean, with their muscular foot transformed ...

It’s a cinematic lunchtime ritual but not an unusual one. In the wild, sea otter diets consists of shelled creatures like clams, sea urchins and crabs. Smashing your meal against a rock is just ...

We're already seeing the effects as coral reefs collapse, oyster beds disappear and tiny creatures that are important food sources get smaller and weaker. Sign our petition to help protect ocean life ...

As underwater chimneys called deep-sea vents release dissolved iron ... A high percentage of these -- perhaps 95 percent -- are hard-shelled marine creatures. For all that we have learned about ...

A snorkeler in Egypt's Red Sea had a near escape after encountering one of the most venomous animals on earth.