Why Tropical Trees Don’t Have Rings | Kirk Johnson
Podcast: NOVA PresentsPublished On: Wed Jan 28 2026
Description: Growth rings on trees can measure time, allowing scientists to date things from the deep past. But, paleobotantist Dr. Kirk Johnson explains why, in the tropics, some trees have no rings.For more, check out the extended interview with Kirk Johnson.Learn more about NOVA and subscribe to our YouTube channel.
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