Episode

How Many Leaves Are on a Tree? | Kirk Johnson

Podcast: NOVA Presents
Published: Apr 29, 2026
Duration seconds: 94
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Canonical source: https://play.prx.org/listen?ge=prx_322_90653db5-7925-4866-bec5-c3e2bc82502f&uf=https%3A%2F%2Ffeeds.wgbh.org%2F322%2Ffeed-rss.xml
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Summary

Need to know how many leaves are on that tree? Paleobotanist Dr. Kirk Johnson shares the surprisingly nerdy method—because you never know when leaf math will come in handy. For more, check out the extended interview with Kirk Johnson. Learn more about NOVA and subscribe to our YouTube channel.