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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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We can now edit the human genome with a tool called CRISPR. But how far should we go?
