In Photos: Attenborough's Ark
In Attenboroughs Ark, Sir David Attenborough explains why the 10 endangered animals he chose are so important.

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Priam's Birdwing Butterfly
Sir David Attenborough with Priam's birdwing butterfly.
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Black Lion Tamarin
Sir David Attenborough gets close to a black lion tamarin - which is being bred successfully at Durrell Wildlife Park.
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Sir David and the Tamarin
Sir David Attenborough enjoys a moment with a black lion tamarin.
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Darwin's Frog
Darwin's frog, Rhinoderma darwinii, close-up. It is the only frog in the world where the male gives birth to its young.
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Northern Quoll
A northern quoll enjoying a snack of mealworms
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Sumatran Rhino
Ratu, the heavily pregnant Sumatran rhino - the smallest and most threatened species of rhino.
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Ratu's Mudbath
Ratu, the heavily pregnant Sumatran rhino enjoying a cooling mud bath.
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Ratu of the Jungle
Ratu, the heavily pregnant Sumatran Rhino, in her jungle habitat.
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Ratu Close-up
Close-up of Ratu, the heavily pregnant Sumatran Rhino.