"We know the surface of Mars or the Moon better than we know the surface of our own planet." Researchers discover never-before-seen creatures in underwater mountain range: 'We still don't know what it ...

SAN JUAN ISLAND, Wash. (AP) — As dawn broke over San Juan Island, a team of scientists stood on the deck of a barge and unspooled over a mile of fiber-optic cable into the frigid waters of the Salish ...

From playful and delicate marine life to dramatic encounters with powerful predators, these winning photos capture remarkable ...

Scientists discover underwater mountain ranges, golden towers of coral, and never-before-seen sea creatures.

When it comes to holding your breath, the animal kingdom puts humans to shame. Some species have evolved extraordinary adaptations that let them dive for incredible lengths of time, not just minutes, ...