Sperm whales sleeping, and possibly dreaming, is an unusual sight to see.
Diver Pulls a Giant Fishhook Out of Lemon Shark
We hope all divers are as helpful as this one who removed a huge hook from a lemon shark's belly.
South African Humpback Whale Party
Huge groups of humpback whales are being seen in South Africa - something only seen in recent years.
With great visibility, warm water and calm conditions, legendary Sipadan and nearby Mabul offer some of the world’s best dive sites.
Although it’s easy to follow the guide on nearly every dive, it’s important to practice underwater navigation techniques.
National marine sanctuaries protect some of the most spectacular ocean and Great Lakes resources in the United States, including shipwrecks like the Dixie Arrow.
Do movies like “Finding Nemo” and “Finding Dory” ultimately help or hurt the marine environment? The answer’s not black and white.