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David Attenborough's Great Barrier Reef:

Manta Rays Use Tiny Fish to Help Them Stay Clean

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Manta Rays Use Tiny Fish to Help Them Stay Clean

Short | 01:52

Wrasse perform a vital cleaning function for other fish, by ridding their bodies of dead cells and parasites. Their biggest customers--literally and figuratively--are the massive manta rays.

More About This episode

Sixty years after his first visit to the Great Barrier Reef, naturalist Sir David Attenborough returns, this time aboard a research vessel equipped with the latest technology. He examines some of the million migrating animals that visit this marine paradise every year and how each of the reef's habitats attracts a very different set of visitors. Follow David from the Osprey Reef, a huge mountain hidden beneath the waves, to Raine Island, the green turtle's favorite nesting area, to Lady Elliot Island, the beauty salon for manta rays.

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