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?

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

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 ...