The sea ice changed completely over the course of a few hours, from disconnected floes to a vast, snow-covered plain.

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

The U.S. successfully claimed another one million square kilometers beneath the ocean, expanding its extended continental ...

At least six great white sharks, one of them a massive 13-foot, 1,400-pound female, have pinged in Florida waters since New ...