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How Corn Took Over the World

In Mexico, Shane Campbell-Staton explores around a maize vault, a treasure trove of genetic diversity. He joins geneticist Sarah Hearne to unravel the intricate DNA makeup of corn. In a tortilla factory, Shane meets with local Mexican chefs Santiago Muñoz and Daniela Moreno, who are committed to reviving the sacred heritage of maize and preserving cultural traditions through corn.
Length 11:24 Premiere: 07/29/24

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Specials

Season Episodes

Vanishing Act
S2 E6 Length 55:39 Premiere Date 07/30/25

Dammed If You Do
S2 E5 Length 55:08 Premiere Date 07/23/25

The Honey Trap
S2 E4 Length 55:09 Premiere Date 07/16/25

Dressed to Kill
S2 E3 Length 55:09 Premiere Date 07/09/25

The Enemy of My Enemy
S2 E2 Length 55:13 Premiere Date 07/02/25

Shelf Life
S2 E1 Length 55:07 Premiere Date 06/25/25

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TV Schedules

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Upcoming

Top Predator - S1 E2

From Yellowstone to Mozambique, Shane discovers the impact of the planet's top predator - us.

  • Saturday June 27, 2026 4:30 am ET on KET2
  • Saturday June 27, 2026 3:30 am CT on KET2

Man's Best Friend - S1 E3

Shane discovers why dogs are more than man's best friend - evolution has reshaped them into the perfect partner for our species.

  • Sunday June 28, 2026 10:00 pm ET on KET2
  • Sunday June 28, 2026 9:00 pm CT on KET2
  • Tuesday June 30, 2026 4:00 am ET on KET2
  • Tuesday June 30, 2026 3:00 am CT on KET2

The Replacements - S1 E4

Shane explores the surprising science and unexpected histories of "The Replacements" - five animal and plant species that made allies of humans and changed their destinies (and our own) forever.

  • Sunday July 5, 2026 10:00 pm ET on KET2
  • Sunday July 5, 2026 9:00 pm CT on KET2
  • Tuesday July 7, 2026 4:00 am ET on KET2
  • Tuesday July 7, 2026 3:00 am CT on KET2

The Urban Jungle - S1 E5

Shane explores three thriving urban species and envisions a wilder future for our cities.

  • Sunday July 12, 2026 10:00 pm ET on KET2
  • Sunday July 12, 2026 9:00 pm CT on KET2
  • Tuesday July 14, 2026 4:00 am ET on KET2
  • Tuesday July 14, 2026 3:00 am CT on KET2

The Ground Below - S1 E6

Shane explores the history and science of cotton. A prehistoric coastline from North Carolina to Texas laid the foundation for a crop that reshaped our history, our culture and even our DNA.

  • Sunday July 19, 2026 10:00 pm ET on KET2
  • Sunday July 19, 2026 9:00 pm CT on KET2
  • Tuesday July 21, 2026 4:00 am ET on KET2
  • Tuesday July 21, 2026 3:00 am CT on KET2
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Top Predator - S1 E2

  • Tuesday June 23, 2026 4:00 am ET on KET2
  • Tuesday June 23, 2026 3:00 am CT on KET2
  • Sunday June 21, 2026 10:00 pm ET on KET2
  • Sunday June 21, 2026 9:00 pm CT on KET2

Strangers in Paradise - S1 E1

  • Saturday June 20, 2026 4:30 am ET on KET2
  • Saturday June 20, 2026 3:30 am CT on KET2
  • Tuesday June 16, 2026 4:00 am ET on KET2
  • Tuesday June 16, 2026 3:00 am CT on KET2
  • Sunday June 14, 2026 10:00 pm ET on KET2
  • Sunday June 14, 2026 9:00 pm CT on KET2
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