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Baroarbunga

Baroarbunga

Video
2:46
Greening of the Serengeti

Greening of the Serengeti

Video
2:01
Diving Through a Halocline

Diving Through a Halocline

Video
2:14
At the Kawah Ijen

At the Kawah Ijen

Video
2:50
Human Towers

Human Towers

Video
3:14
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Tuberculosis: The Forgotten Plague

Tuberculosis: The Forgotten Plague

Season 6 Episode 5
26:49
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Forces of Nature

The Pororoca Wave

Surfer Serginho Laus rides the Prororoca Wave, a tidal wave on the Amazon River in Brazil.
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