From a ballet of white-tip reef sharks to a cardinal fish releasing freshly hatched babies from its mouth, these underwater ...

The Largest Living Structure on Earth Imagine something so vast that it's visible even from space—this is the Great Barrier ...

They considered 250 vacation destinations to make the final list. These breathtaking photos will show why the Great Barrier Reef earned the top spot.

In 2016 and 2017, marine heat waves caused by climate change resulted in mass bleaching, which killed about half of the corals on the Great Barrier Reef, along with many others around the world.

The Great Barrier Reef is an underwater city built by jellyfish-like animals. The largest living structure on earth, the Great Barrier Reef is actually built by tiny creatures called coral polyps.

Narrator: This is the Great Barrier Reef ... A normal, healthy coral reef is very colorful. There's tons of fish swimming around. It's often quite loud underwater when you're diving on a coral ...

An curved arrow pointing right. Wreckage from an Australian WWII aircraft has been discovered deep underwater on the Great Barrier Reef. The Royal Australian Air Force said the plane was used to ...

Record ocean heat has taken a devastating toll on one of the world’s greatest natural wonders, with coral bleaching on Australia’s Great Barrier Reef reaching “catastrophic” levels ...

In a new study, they track the rapid rate at which coral colonies in the Southern Great Barrier Reef faced bleaching ... Instead, they die, triggering an underwater domino effect that reduces ...