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The Surprising Species That Everything Else Depends On

We travel from Africa’s Serengeti Plains to the nearly extinct prairies of the western United States to discover the unexpected species that determine the very existence of these places. Can an ecosystem survive without its keystone species? And can we restore endangered human cultures by bringing back a nearly-extinct ecosystem?

Length 25:47 Premiere: 07/08/21

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These Death-Eating Scavengers Are Real Life-Savers

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Elephant Moms Carry the Wisdom of Generations

Length 25:36 Premiere Date 07/21/21

Are Some Species More Important Than Others?

Length 25:47 Premiere Date 07/08/21

The Surprising Species That Everything Else Depends On

Length 25:47 Premiere Date 07/08/21

The Superb Owl!

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Season Episodes

Show Episodes

Show Clips & Previews

The Intelligence Test Where Ants Beat Humans

S13 E17 Length 14:52 Premiere Date 02/05/26

Everything I Thought I Knew About Flavor Was Wrong

S13 E16 Length 19:50 Premiere Date 01/15/26

The Scientific Lie That Damaged Generations of Men

S13 E15 Length 20:05 Premiere Date 12/18/25

Inside the Vault Where They Keep the Dinosaur Apocalypse

S13 E14 Length 22:36 Premiere Date 12/04/25

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S13 E12 Length 11:08 Premiere Date 10/23/25

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S13 E11 Length 36:47 Premiere Date 10/02/25

Why Seedless Fruit Is a Disaster Waiting To Happen

S13 E10 Length 14:51 Premiere Date 08/21/25

The Randomness Crisis Threatening the Internet

S13 E9 Length 21:13 Premiere Date 07/31/25

Blood Types Are Weirder Than You Think

S13 E8 Length 16:20 Premiere Date 07/10/25

How Feathered Dinosaurs Accidentally Invented Flight

S13 E7 Length 16:18 Premiere Date 06/19/25

What Could We See with a Planet-Sized Telescope?

S13 E6 Length 16:00 Premiere Date 05/27/25

The Argument for De-Extinction: Explained

S13 E5 Length 26:19 Premiere Date 05/08/25

Will Earth Run Out of Oxygen

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What’s Inside the Oldest Rocks in the World?

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S13 E2 Length 17:11 Premiere Date 03/21/25

The Weird Science That Lets Insects Fly in the RainThe Weird Science That Lets Insects Fly in the Rain

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