What if the defining revolution of Earth's history wasn't led by animals or humans, but by flowers? Are we truly individuals, or are our bodies and minds just walking ecosystems?

Our guest today is David George Haskell, a biologist who has spent much of his life training himself to see the universal within the infinitesimally small. He's famously sat for a year in a single square meter of Tennessee's forest, a mandala experience that revealed the deep history of the world through a single fallen leaf. He's a two-time finalist for the Pulitzer Prize for his books The Forest Unseen and Sounds Wild and Broken, and he received the John Burroughs Medal for The Songs of Trees.

His work o ...