Known as the Sargasso Sea, sailors have crossed it for centuries, but few notice the border when they slip into glassy indigo ...

A new report describes the dire state of Earth’s snow and ... cause severe sea-level rise and the collapse of a crucial ocean current that governs how heat cycles in the Atlantic Ocean.

That's when plankton with calcium carbonate skeletons colonized the open ocean. When they died, their remains fell like snow over large ... of tiny but mighty sea creatures: foraminifera.

Based on the data, sea turtles in the Atlantic Ocean are faring better than those in the Pacific Ocean, but entanglement in fishing gear remains a major threat to all sea turtle species.

It was recorded March 9 near the South Sandwich Islands in the South Atlantic Ocean at a depth of nearly 2,000 feet, according to a news release from the nonprofit. The squid was formally named ...