Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some types of sea ...

Joshua Cinner receives funding from the Australian Research Council and National Geographic Society. He is a Fellow of the Academy of Social Sciences in Australia and the International Coral Reef ...

Researchers say the new footage of the deep sea fish may be the first live sighting of the creature in daylight near the ocean's surface Brenton Blanchet is an Associate Editor on PEOPLE's TV team. He ...

The wave comes, throat-high and hungry. The last thing I see before it sweeps me off the rock and into the ocean is a man in a wetsuit leaning his shoulder into a wall of water. When we swam out here ...

A 200-foot barge has become the latest addition to the Little Egg Inlet Reef, the same spot where artificial reef balls were added last year. The barge, identified as No. 199, was sponsored by the ...

Denis Crean, a businessman and longtime swimming coach, has pursued his passion for open-water swimming in just about every kind of waterway. He has overcome headwinds at Lake George in Upstate New ...

A rare oarfish, known as the "doomsday fish," was spotted in shallow waters off Baja California Sur, Mexico. Days earlier, a deep-sea anglerfish was filmed swimming in broad daylight off the Canary ...

Fish make hanging motionless in the water column look effortless, and scientists had long assumed hovering was a type of rest. Now, a new study reveals that fish use nearly twice as much energy when ...