After hearing that a U.S. Navy submarine ran into an underwater mountain, Joe Wolfel was surprised to find out just how little both government and commercial organizations knew about the ocean floor.

National Geographic announced Tuesday that it is officially recognizing the body of water surrounding the Antarctic as the Earth's fifth ocean: the Southern Ocean. The change marks the first time in ...

Add Yahoo as a preferred source to see more of our stories on Google. Migration patterns are diverse. Green turtles tend to stay within a single ocean basin for breeding and foraging, while sperm ...