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Are Some Species More Important Than Others?

We explore the universal rules of life that tie together Earth’s living systems. Traveling from Africa’s Serengeti plains to the nearly extinct prairies of the western U.S. to discover the unexpected species that determine the very existence of these places. Can an ecosystem survive without its keystone species? Can we restore endangered human cultures by bringing back a nearly-extinct ecosystem?
Length 25:47 Premiere: 07/08/21

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Specials

Season Episodes

The New Kind of Heat Humans Can’t Handle
S14 E7 Length 21:23 Premiere Date 07/01/26

Scientists Finally Figured Out What Love Is For
S14 E6 Length 16:47 Premiere Date 06/11/26

We've never seen an atom. But we know what they look like.
S14 E5 Length 16:47 Premiere Date 05/28/26

Infinity isn’t a number. It's something much weirder.
S14 E4 Length 10:51 Premiere Date 05/14/26

Something Strange Happens When You Flatten the Earth…
S14 E3 Length 24:25 Premiere Date 04/21/26

You've Been Lied to About DNA Evidence
S14 E2 Length 22:37 Premiere Date 03/31/26

Traffic Lights Are So Much Weirder Than You Realize
S14 E1 Length 17:13 Premiere Date 03/10/26

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