How the Great Barrier Reef Formed | Great Barrier Reef

Australia’s Great Barrier Reef wasn’t always there. It was once a sprawling land that was home to many Australian land animals. Watch the full season of Great Barrier Reef on the National Geographic site & app, with your cable subscription: ➡ Subscribe: About National Geographic Wild: National Geographic Wild is a place for all things animals and for animal-lovers alike. Take a journey through the animal kin