This article originally published at 'Mass die off': Thousands of rare sea creatures wash up on Texas coast.

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

The Trump administration wants to make economic impacts a factor in what was previously a science-based decision on what's ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

Along long stretches of the Texas shoreline, thousands of rare sea creatures have been turning up dead or dying, transforming ...

For most mammals, growing up means giving up their mother’s milk. Then there are the sea lions of the Galápagos Islands.

Like a scene out of a Jules Verne novel, scientists from Schmidt Ocean Institute recently encountered a giant phantom jelly ...

A bright green sea slug along America’s coast feeds on sunlight, not food, borrowing plant power to survive months unfed, ...

Thirty-three North Atlantic right whales were seen in Cape Cod Bay during an aerial survey conducted on Saturday, Jan. 10, ...

Scientists have finally solved a decades-old mystery with the first-ever live encounter of a ginkgo-toothed beaked whale.

A wildlife haven famous for its otters and over-wintering and migrating birds is being sold up at auction. Almost 15 acres ...

This is the moment deep sea explorers captured an incredibly elusive creature on camera - the giant phantom jellyfish.