Several systems malfunction at a home aquarium, placing aquatic life at immediate risk. This video captures the precise moments when circulation, filtration, and monitoring issues begin to compound.

It could be a game-changer for the millions of Americans who suffer from sleep apnea. A new first-of-its-kind pill could ...

The Broncos have won 15 of their last 18 games at home, thanks in part to teams traditionally struggling in the thin air.

Peter Boardman and Joe Tasker were two of Britain's most gifted climbers, famous for their bold, lightweight ascents that ...

Recent shark attacks may be linked less to shark behaviour – and more to the pollutants, pesticides and parasites humans send ...

While most bodies discovered on Everest are found covered in snow, this unlucky Brit seemed to pass away on his terms on the ...

To help you determine where your fitness level stands, we learned a four-minute chair workout to try after 60. If you can finish it, you’re doing great—in fact, it indicates your endurance is ...

In a tragic incident that highlights the perils of mountaineering, a French climber lost his life on Monday in Aconcagua National Park, marking the second fatality in just two weeks at South America's ...

We can't get enough of our Suunto Vertical 2 — this rugged smartwatch has everything athletes and outdoor explorers may ever ...

Only a few hours earlier, a shark knocked an 11-year-old boy into the water at Dee Why—just north of Manly—and bit a chunk out of his surfboard. And on Sunday afternoon, a 12-year-old boy was bitten ...