Sir David Attenborough explores what is being done by researchers and scientists to save the Great Barrier Reef.

David discovers the incredible animals that visit the reef every year.

Sir David Attenborough descends at night in the state-of-the-art Triton submersible, the first of its kind, to visit the reef; he meets some of the tiny coral animals that built the reef and helped to turn it into an underwater wonderland.

Behind the scenes of David Attenborough's landmark series in which he visited the Great Barrier Reef. See how Sir David utilized the latest technology to explore the reef.

One of the natural wonders of the world and the largest living structure on our planet.

From the frozen tundra in the north to the dry forests of the equator, Sir David Attenborough narrates a compelling view of the planet. "Planet Earth" was the first natural history documentary to be filmed in high definition, and now a decade later improved technology has made it possible to capture further details, from elusive animal behaviors to previously inaccessible remote landscapes. In addition to exploring the wilderness, the series examines urban dwellings, focusing on animals that have adapted to city life.

David Attenborough investigates the evolution of nature's flight in this documentary series. Using 3D macroscopic and high-speed filming techniques, the show captures flying mammals, reptiles and insects, as well as birds from all over the world. Attenborough travels from Scotland to Borneo to find the extraordinary species gracing the skies. Created by the award-winning team behind "Natural History Museum Alive" and "Flying Monsters," this series utilizes the latest technology to delve deeper into the animal kingdom to present the natural world's engineering and aeronautics in action.

The planet is teeming with myriad life forms, both plant and animal, all interlocked in a struggle for survival. As time goes on, some living things are forced to adapt and change to survive. This series chronicles some of the most unusual, if not downright bizarre, behaviors that living organisms have devised to keep their species alive. The 11-episode series was four years in the making, taking camera crews to every continent and habitat.

"Dynasties" is a documentary by Sir David Attenborough as he goes on a journey behind some of the most celebrated and endangered animals on the planet. Follow the stories of penguins, chimpanzees, lions, painted wolves, and tigers. Each of these animals is locked in a heroic struggle against the forces of nature and their rivals -- they face harsh environmental conditions, dangerous predators, and even the greatest threat: humans. They actively seek to fight for their survival and the survival of their families -- their dynasties.

David Attenborough embarks on a 500 million year journey to unravel the incredible rise of animals.