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Male sage-grouse gather in groups to compete for females.

3:35
The nubian ibex, a desert-dwelling goat, can scale near vertical cliffs.

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An increasingly fragmented landscape is creating problems for the fleet-footed creature.

2:01
Two snub-nosed monkey brothers play in the tree tops, annoying the rest of the troop.

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Hippos get scrubbed from head to toe by a fish called the barbell.

2:44
A lion reclaims his kill under cover of darkness.

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Hummingbirds may look cute, but they hide a secret warrior within.

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Asiatic lion cubs enjoy a little rough and tumble with their parents.

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Weighing only 4% as much as an adult, a baby hippo is completely dependent on its mother.

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During the dry season, water runs low and many hippos are forced to share the same pool.

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The scent of a decaying hippo attracts all sorts of predators to the hippo's ground.

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When dead whales turn up in San Francisco, they’re towed to this uninhabited island.