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NOVA
Nature's Fear Factor
Season 47
Episode 9
For animals in Mozambique’s Gorongosa National Park, the normal balance of competition and predation was upended when a war wiped out the top predators. The remaining animals didn’t simply grow in numbers—they began behaving in unusual ways, veering outside their typical territories and feeding patterns.
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Climb into the crater of Nyiragongo, a seething and active African volcano.
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How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.
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Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.
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Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.
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Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.
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52:55
Engineers race to build a massive dome to contain the crumbling remains of the reactor.