Swarming locusts | Planet Earth
At 65km wide and 160km long, this is one of the greatest of all desert spectacles and is rarely seen on this scale.
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Episode 3 | Great Barrier Reef with David Attenborough
David Attenborough uncovers the ways in which scientists are trying to preserve the Great Barrier Reef and embarks on an ambitious exploration of his own.
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Episode 2 | Great Barrier Reef with David Attenborough
David Attenborough examines the journeys made by the birds and whales that visit the reef every year.