91热爆

Green revolution

As grasses conquered the world, mammals adapted to the changing climate.

12 October 2010

2 minutes

This clip is from

Walking with Beasts—The Science of Walking with Beasts, Triumph of the Beasts

91热爆 Nature

Be captivated, informed and inspired by the world's wildlife.

Evolutionary arms race

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Gentle giants

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Ugly mammals

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Desert whales

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Helpful heritage—The Science of Walking with Beasts, The Beasts Within

Duration: 03:54
Evolutionary arms race—The Science of Walking with Beasts, Triumph of the Beasts

Duration: 03:59
Gentle giants—The Science of Walking with Beasts, Triumph of the Beasts

Duration: 02:30
Ugly mammals—The Science of Walking with Beasts, Triumph of the Beasts

Duration: 03:29

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