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

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

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

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

Animals that researchers call “supersucklers” come back to nurse even after they can hunt, mate and fend for themselves.

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

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

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

A list of animated cartoon series that kids who are obsessed with animals can watch to learn about ecosystems, animals and ...

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

Following five seasons with virtually no nests, the Pacific coast of Nicaragua is seeing the return of leatherback turtles.

A wildlife photographer has captured what are believed to be the first underwater images of the rare, elusive Ross seal.