The reef is full of dangerous predators, including the giant Queensland grouper and the deadly sea snake.
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Great Barrier Reef
Stretching 2000 kilometres and made up of 3000 individual reef systems and hundreds of islands, Australia's Great Barrier Reef is breathtakingly beautiful. This programme offers a definitive guide to the secrets of the reef how it was created, the intricate relationships between its inhabitants and how climate change and other factors might shape its future.

Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of astounding, entertaining, thoughtprovoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

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