Sea cucumbers are repellant to most predators, which makes them a perfect hiding spot for the Pearlfish.
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Great Barrier Reef
Stretching a full 2000 kilometres in length and made up of 3000 individual reef systems and hundreds of islands, Australia’s Great Barrier Reef is breathtakingly beautiful. Given world heritage status in 1981 it is one of the wonders of the natural world. This programme offers a definitive guide to the secrets of the reef – how it was created, how it works, 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, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn’t get more exciting than this.
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