A riotous photography collection from a recent underwater mission off the coast of Chile shows new and fascinating deep-sea ...

Sharks, lobsters, corals, and deep-sea sponges are just some of the 866 new marine species recently identified in the largest global effort to accelerate ocean discovery.

The bluefin tuna, one of the world's most remarkable ocean creatures, is in trouble and needs your help. Overfishing is driving this mighty warm-blooded fish toward the brink ... on its “Red List” of ...