观看免费视频 Yellowstone National Park: Geysers

(101 MB) 添加日期12 May 2016 播放100次 Nature
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Yellowstone National Park: Geysers

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With over half the world's geysers, Yellowstone offers tremendous opportunities to see geology in action. Explore the mechanics of geysers, their role in the park's history and what they can teach us about the world in which we live.