The surface of the Earth is about two-thirds water, but how much of the world’s deep seas do you think we’ve explored?

Matthew Gavin Frank is the author of “Submersed: Wonder, Obsession, and Murder in the World of Amateur Submarines.” ...

Deep-sea and sport fishing are two of the most popular pastimes for Florida residents. With an abundance of colorful marine ...

With ear-like fins that flap gracefully through the water, the Dumbo octopus in this YouTube video looks like it waltzed ...

You’ll find Daniel Lee Messerschmidt studying microscopic slides in one moment and charting hiking trails across redwood ...