Corals in the Florida Keys are being ravaged by warming waters, diseases, overfishing, storms and more. Here's how some people are banding together to give them a fighting chance.

Few ocean critters are more charismatic than captivating cephalopods—squid, octopuses, cuttlefishes, nautiluses—and as divers, we can't get enough.

Can sound save coral? One researcher is working to answer this question.

The latest "Ask a Marine Biologist" 

The typically inconspicuous giant Australian cuttlefish puts on a spicy performance during mating season 

What organizations do divers need to know about? Dr. David Shiffman features the Angel Shark Project.

How Dr. Annie Murray followed a passion for diving to some of the most remote islands in the world