Grass Apes

In this 22-minute episode, Radiolab explores the overlooked but transformative role of grass in human history and biology. Hosted by Molly Webster and featuring biologist and writer David George Haskell, the episode frames grass as far more than a mundane lawn or allergen—it's a planetary force that has shaped human evolution, diet, culture, and perception. The episode draws on Haskell's essay "All Hail Grass, Maker of Humans!" from The Other Almanac and his book "How Flowers Made Our World," which includes a chapter on grass (noting that grass is technically a flowering plant). The core argument appears to be that grass's global presence across every continent has had cascading effects: it influences what humans eat (grains are grasses), potentially shapes human body structure through dietary adaptation, and affects how we perceive and interact with the world. The episode is framed as a "tiny ode to Grass"—suggesting a celebratory, wonder-focused approach rather than a comprehensive scientific treatise. Production credits indicate this was inspired by a Radiolab outdoor theatre performance called "Grass Fed" at Little Island in New York City, which featured Haskell alongside a foley artist and the dance company Pilobolus, suggesting the episode may incorporate creative sound design and theatrical elements. The episode includes fact-checking and appears to be professionally produced with original vocals and mixing. However, the show notes provide limited detail about specific claims, evidence presented, or the depth of scientific explanation offered. There's no indication of counterarguments, methodological discussion, or nuance around the connections drawn between grass and human development.

Verdict: A well-produced, creatively framed exploration of an underappreciated topic by a credible expert, but the brevity and theatrical origins suggest style may outweigh scientific depth.

Science rubric

• Scientific accuracy 3/5 20%

  Haskell is a credible biologist and writer; the basic premise (grass's role in human history) is scientifically sound, but show notes don't detail specific claims or evidence quality.

• Clarity for non-experts 3/5 20%

  Framed as an accessible 'ode' with creative production elements, but show notes don't demonstrate how complex concepts are explained or whether jargon is avoided.

• Sense of discovery 3/5 15%

  The angle of grass as a historical force is somewhat fresh, but the show notes don't reveal specific novel findings or surprising insights beyond the general premise.

• Substance 2/5 15%

  At 22 minutes with theatrical inspiration and described as a 'tiny ode,' the episode may prioritize atmosphere over depth; show notes suggest thematic breadth (diet, body, perception) but unclear if each is substantively explored.

• Delivers on its title 3/5 15%

  Title 'Grass Apes' suggests exploring the connection between grass and human evolution/nature; show notes confirm this theme but don't clarify how thoroughly it's developed.

• Value for time 3/5 15%

  22 minutes is concise; appropriate for an 'ode,' but unclear whether pacing serves content or if brevity limits exploration of promised themes.

How we score Science

Worth it if you enjoy Radiolab's narrative-driven approach to science and want a quick, engaging introduction to grass's role in human history rather than a rigorous deep dive.

Based on the episode description. AI-generated; it can be wrong.