Researchers at MBARI, the Monterey Bay Aquarium Research Institute, have been exploring this hidden world for years. Using ...

Animals come in an extraordinary range of body shapes. A starfish looks nothing like an earthworm, a mouse, or a human. Yet even closely related species can appear radically different: corals, ...

From bone-eating snot-flowers to snowboarding scale worms, when a whale dies it becomes a colossal island of nutrients – attracting weird and wonderful creatures to feast.

Glittery sea worms and sea squirts fit for "The Lord of the Rings" universe might sound like pure fantasy, but they're very real creatures living in the deep sea. Some of these otherworldly ocean ...

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

NEW YORK (AP) — An underwater voyage has revealed a network of creatures thriving at the bottom of deep-sea ocean trenches. In these extreme environments, the crushing pressure, scant food and lack of ...

The Harte Research Institute warns that "blue dragons," a nickname for a species of sea slug, can deliver a painful sting ...

In total, the team found nearly 300 different types of underwater species during their six week mission. Find out more here.

Getty images by EyeEm Mobile GmbH Officials are warning beachgoers after sea creatures with dangerous stings are washing up at a Texas beach. The Harte Research Institute has issued about blue glaucus ...

Watch this clever sea otter trade its prized sea pebble for a fish, then read all about how clever these creatures are.