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Nature's Fear Factor

NOVA
Air Date: 10/14/20 | Expires: 12/31/27 | Rating: TV-PG

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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Polar Extremes
S47 Ep1 | 1h 52m 46s
Air Date: 02/05/20 | Expires: 03/19/27 | Rating: TV-PG

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

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Dog Tales
S47 Ep2 | 53m 21s
Air Date: 02/12/20 | Rating: TV-G

Follow the epic journey of dog domestication and see what science says about dogs’ love.

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Cat Tales
S47 Ep3 | 53m 21s
Air Date: 02/19/20 | Rating: TV-G

Goddess, demon, house pet? What does science say about the human relationship with cats?

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Mysteries of Sleep
S47 Ep4 | 53m 14s
Air Date: 02/26/20 | Rating: TV-PG

Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?

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Nature’s Fear Factor
S47 Ep9 | 53m 21s
Air Date: 10/14/20 | Expires: 12/31/27 | Rating: TV-PG

Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

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Human Nature
S47 Ep11 | 1h 33m 41s
Air Date: 09/09/20 | Expires: 09/08/25 | Rating: TV-PG

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

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