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, ...

A trio of adorable sea lions pups was released back into the sea off Redondo Beach Friday after weeks in the care of rescuers ...

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 ...

This adorable sea lion has to eat five to eight percent of its body weight every day to stay healthy and hydrated. Over the ...

The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, ...

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

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.

The video above takes viewers beneath the waters off Bali, Indonesia, where a truly unusual marine animal glides across the seafloor. At first glance, it looks almost unreal — soft, translucent, and ...

The Mediterranean's first sanctuary for dolphins that have lived in captivity will open off Italy next year, as demand for re-homing rises with the closure of marine parks across Europe. It's a scene ...

Explore the darkest corners of the abyss with 18 terrifying creatures found at the bottom of the ocean. These are Earth's ...

The natural world is full of interesting creatures with unique biological systems. Among the most interesting creatures is the starfish, also referred.