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Human Footprint

The Top Secret Vault for Ancient Maize

Shane dives into Mexico's cornucopia with geneticist Sarah Hearne.

Aired 07/24/2023 | Rating NR

Human Footprint

The Top Secret Vault for Ancient Maize

Clip: Episode 4 | 1m 30sVideo has Closed Captions

Shane dives into Mexico's cornucopia with geneticist Sarah Hearne.

Shane follows geneticist Sarah Hearne into a vault of over 28,000 species of maize that has weaved itself into the fabric of Mexico's past, present and future. But in the last century, just a handful of varieties have come to dominate global corn production. What happened?

Aired 07/24/2023 | Rating NR

The Cat Tracking Device of the Future

Video has Closed Captions

Dr. Roland Kays uses a global GPS tracker plan to unleash the secret lives of wild cats. (3m 25s)

Changing the World with Corn

Video has Closed Captions

Shane meets with local Mexican chefs committed to reviving the sacred heritage of maize. (1m 30s)

Episode 4 Preview

Video has Closed Captions

Shane meets five species that made allies of humans. (30s)

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