Radiolab Radiolab

Grass Apes

Sep 25, 2026 · 22m

Summary

Host Molly Webster explores the hidden history of grass, revealing how these plants shaped human evolution and diet. She interviews biologist David George Haskell, who explains how grasslands drove the rise of bipedalism and how grass seeds became the foundation of global agriculture. The episode also highlights the sensory and calming effects of grass on the human body, inviting listeners to reconnect with their "grass ape" ancestry.

Topics discussed

Sponsors: NYU Skurball and Progressive Insurance Promoting the Radio Lab Fanny Pack and Membership Introduction: The Grass Story and Horticulturist Public Reactions to the Question About Grass David George Haskell: Grass as Human Co-creator Evolution of Grasslands and Fire Adaptation Silica in Grass Blades and Animal Digestion Grass Seeds as Food Source for Ancestors Grasses as the Foundation of Human Diet Transition to Grassland Evolution and Bipedalism Sponsors: Capital One, Telenovela, Audible, Wise Bipedalism, Foot Sensitivity, and 'Grass Apes' Sensory Experience: Sound and Aroma of Grass Closing Reflections and Episode Credits Staff Credits and Funding Acknowledgments
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