It's illegal to fish for them off the U.S., but the sharks sometimes get caught as bycatch.

Oris Staghorn Limited Edition watches raise $24,000 for the Coral Restoration Foundation at annual gala in the Florida Keys.

This underwater photographer has a unique approach that we cannot get enough of. See his incredible photos here.

Tropical fish make lousy neighbors as they seek cooler waters and disrupt temperate ecosystems.

Richard Branson and Guy Harvey set out to witness a grouper spawning off Little Cayman. See what they saw in this 360 video.

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Four Finnish cave divers set out on a recovery mission when two of their friends drowned deep inside an underwater cave in Norway.

A new technology allows scientists to learn more about enormous underwater avalanches.