About this episode

Paleobotanist Dr. Kirk Johnson discusses the method for counting leaves on a tree.

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.

Explore listener stats, chart rankings, contacts and more on the NOVA Presents podcast page.