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As the ultimate ecosystem engineers and keystone species, people can work with nature to make this world thrive. Visit the metropolises of China, the outskirts of LA, the bogs of Ireland and the favelas of Rio for a deeper look.
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Preview Season 1 Episode 4 Length 00:30 Premiere: 04/16/25

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Season 1 Episodes

Humans
S1 E4 Length 55:03 Premiere Date 04/16/25

Forests
S1 E3 Length 54:06 Premiere Date 04/09/25

Grasslands
S1 E2 Length 54:21 Premiere Date 04/02/25

Oceans
S1 E1 Length 54:18 Premiere Date 03/26/25

Episode 4 Preview
Preview Length 00:30 Premiere Date 04/16/25

Protecting Mountain Lions in LA
Clip Length 10:01 Premiere Date 04/16/25

Series Preview
Preview Length 00:30 Premiere Date 03/26/25

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Humans - S1 E4

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  • Tuesday October 13, 2026 3:00 am CT on KET2
  • Sunday October 11, 2026 10:00 pm ET on KET2
  • Sunday October 11, 2026 9:00 pm CT on KET2

Forests - S1 E3

  • Tuesday October 6, 2026 4:00 am ET on KET2
  • Tuesday October 6, 2026 3:00 am CT on KET2
  • Sunday October 4, 2026 10:00 pm ET on KET2
  • Sunday October 4, 2026 9:00 pm CT on KET2

Grasslands - S1 E2

  • Tuesday September 29, 2026 4:00 am ET on KET2
  • Tuesday September 29, 2026 3:00 am CT on KET2
  • Sunday September 27, 2026 10:00 pm ET on KET2
  • Sunday September 27, 2026 9:00 pm CT on KET2

Oceans - S1 E1

  • Tuesday September 22, 2026 4:00 am ET on KET2
  • Tuesday September 22, 2026 3:00 am CT on KET2
  • Sunday September 20, 2026 10:00 pm ET on KET2
  • Sunday September 20, 2026 9:00 pm CT on KET2
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