Moray eels and grouper exhibit an interesting behavior you could observe on your next dive. Here are the signs to look out for.
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Groupers have been a favorite fish since the pioneering days of diving. Widespread in the tropics and subtropics, they are slow-moving, curious and intelligent, and many are highly colored.
In this edition of Ask a Marine Biologist, Dr. David Shiffman answers questions recently sparked by a frozen shark found in Cape Cod.
Island of Natural Wonder
An Undiscovered Natural Paradise in the Out Islands
Underwater photographer Patrick Webster encourages viewers to take a closer look at creatures while diving or even in their favorite photos.
Alexandra Owens used to be scared of sharks—terrified actually. Once she learned to dive, the fear slowly put itself to rest. Here's her story.
In this edition of Ask a Marine Biologist, Dr. David Shiffman answers one of the most-asked questions about sharks—are they mammals, fish, or something else?