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Love fruit? Thank dinosaur mass extinction

In the Cretaceous period, sauropods were major ecosystem engineers. They knocked down trees and distributed nutrients through their poop, dramatically altering the landscape of ancient Earth.
Joe Regan/Getty Images
In the Cretaceous period, sauropods were major ecosystem engineers. They knocked down trees and distributed nutrients through their poop, dramatically altering the landscape of ancient Earth.

Move over, TikTokers. It's time to shine a spotlight on some of the earliest influencers around: dinosaurs. When these ecosystem engineers were in their heyday, forest canopies were open and seeds were small. But around the time most dinosaurs were wiped out, paleontologists noticed an interesting shift in the fossil record: Seeds got bigger — much bigger. There was a fruit boom. Did the death of these dinosaurs have something to do with it? And who are the modern day equivalent of dinosaur influencers? To find out, host Emily Kwong talks to Chris Doughty, an ecologist at Northern Arizona University.

Tell us what other tales of dino past you want us to regale you with by emailing us at shortwave@npr.org!

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This episode was produced by Berly McCoy and edited by Rebecca Ramirez. It was fact-checked by Tyler Jones. The audio engineer was Robert Rodriguez.

Copyright 2025 NPR

Emily Kwong (she/her) is the reporter for NPR's daily science podcast, Short Wave. The podcast explores new discoveries, everyday mysteries and the science behind the headlines — all in about 10 minutes, Monday through Friday.
Berly McCoy
Kimberly (Berly) McCoy (she/her) is an assistant producer for NPR's science podcast, Short Wave. The podcast tells stories about science and scientists, in all the forms they take.
Rebecca Ramirez
Rebecca Ramirez (she/her) is the founding producer of NPR's daily science podcast, Short Wave. It's a meditation in how to be a Swiss Army Knife, in that it involves a little of everything — background research, finding and booking sources, interviewing guests, writing, cutting the tape, editing, scoring ... you get the idea.