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Human Footprint
The Top Secret Vault for Ancient Maize
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?
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54:53
Shane explores the Human Footprint of cotton, from ancient rocks to 21st-century politics.
55:12
Shane explores three thriving urban species and envisions a wilder future for our cities.
55:21
Shane meets five species that made allies of humans.
55:23
Shane’s love of dogs turns to awe as he discovers their profound impacts on humans.
55:24
From Yellowstone to Mozambique, discover the impact of the planet’s Top Predator: us.
Earth Month
55:11
Shane tracks down four invasive species that make him reconsider what it means to belong.