The Click of the Wild Eland Antelope

Listen for the subtle clicks of the eland bull's knees

Wildlife

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10 Fun Facts About Bioluminescence (02:38)

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How Cowboys Breed Perfect Cattle (04:12)

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Swimming With Sharks: Juliet Eilperin (04:16)

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Manufacturing of bitumen-lined water bottles (01:41)

Preview thumbnail for A sea lion propels itself through the water at Smithsonian's National Zoo

A sea lion propels itself through the water at Smithsonian's National Zoo (00:05)

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Why Young Grassland Songbirds Sleep In (02:02)

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Don't Call the Blobfish Ugly (02:21)

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7 Weirdest Bird Calls (02:55)

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10 Fascinating Facts About Owls (03:04)

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10 Fun Facts About Jellyfish (02:46)

Preview thumbnail for 10 Enchanting Butterfly Facts Revealed!

10 Enchanting Butterfly Facts Revealed! (02:28)