Eric Sterman filmed himself riding the waves in Hawaii when he saw the whale throw its tail out of the water right next to ...

From Fiji's kaleidoscopic reefs to shark-packed passes in French Polynesia, these six destinations offer some of the world's most exhilarating underwater experiences.

Fossilized whale skulls from Belgium reveal embedded shark teeth. These fossils are direct evidence of ancient interactions. Researchers found signs of sharks biting whales in the Early Pliocene North ...

Three orcas that had not previously been recorded in the Seattle area have delighted whale watchers with several visits.

A trio of mystery orcas has been delighting people off the coast of Seattle, but researchers are wondering where they ...

"We don't know their exact origin with 100% certainty yet, but the leading hypothesis is that they're from Alaska," a ...

According to CBS News, three previously unrecorded orcas have been spotted multiple times near the northwest coast, appearing ...

From remote places on the other side of the world to our own backyard, these are spots where you can switch off and feel your ...

The world-record freediver and performance psychologist on mastering fear, pushing limits and deliberately stepping into discomfort.

Explore 25 awesome facts about the most extreme things on Earth, from the hottest deserts to the deepest oceans. Uncover ...

There’s a beach in Maryland where the sand is literally sprinkled with prehistoric shark teeth. Welcome to Calvert Cliffs ...