06/13/25

A Dino’s Last Dinner And Eavesdropping Birds

17:30 minutes

A rock with imprints of leaves throughout it
The gut contents of a fossilized dinosaur, with evidence of leaves. Credit: Stephen Poropat

While there are a lot of dinosaur fossils, and a lot of plant fossils, the precise connection between the two has been something of a mystery. Now, researchers report that they’ve found what’s called a cololite, fossilized gut contents, in the remains of a sauropod—a massive, long-necked plant-eater. The dino’s last meal dates back 95 to 100 million years. Paleontologist Stephen Poropat joins Host Flora Lichtman to dig into the mysteries of a dinosaur’s tummy.

 

 

 

A prairie dog standing in a grassy area
A black-tailed prairie dog. Credit: Roshan Patel, Smithsonian’s National Zoo and Conservation Biology Institute

And, for prairie dogs, communication is key. The rodents’ yips and barks can warn when danger is near—and not just to other prairie dogs. A new study suggests that birds called long-billed curlews are eavesdropping on this chatter to learn when a predator is lurking nearby. Using speakers and a taxidermied badger on wheels, ornithologists are untangling the social dynamics of black-tailed prairie dogs. Host Flora Lichtman talks with study author Andrew Dreelin about this eavesdropping behavior and what it means for conservation.


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Segment Guests

Stephen Poropat

Dr. Stephen Poropat is a paleontologist and deputy director of the Western Australian Organic and Isotope Geochemistry Centre at Curtin University in Perth, Australia.

Andrew Dreelin

Andrew Dreelin is a research fellow with the Smithsonian Conservation Biology Institute and a PhD candidate at Northern Illinois University.

Segment Transcript

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Meet the Producers and Host

About Rasha Aridi

Rasha Aridi is a producer for Science Friday and the inaugural Outrider/Burroughs Wellcome Fund Fellow. She loves stories about weird critters, science adventures, and the intersection of science and history.

About Charles Bergquist

As Science Friday’s director and senior producer, Charles Bergquist channels the chaos of a live production studio into something sounding like a radio program. Favorite topics include planetary sciences, chemistry, materials, and shiny things with blinking lights.

About Flora Lichtman

Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.

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