A tyrannosaur tooth embedded in a hadrosaur skull

I Know Dino: The Big Dinosaur Podcast

I KNOW DINO, LLC

Iknowdino, Science, Dinosaurs, Dinosaur Podcast, Earth Sciences, Dinosaur, Natural Sciences, Education

4.7 • 653 Ratings

🗓️ 13 May 2026

⏱️ 85 minutes

🔗️ Recording | iTunes | RSS

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Summary

plus hadrosaurs breaking their tails while mating, a diplodocoid with a broken tail tip, and many more paleopathologies.

For links to every news story, all of the details we shared about Koparion, and our fun fact check out https://iknowdino.com/Koparion-Episode-565/

Join us at www.patreon.com/iknowdino for dinosaur requests, bonus content, ad-free episodes, and more.

Dinosaur of the day Koparion, a small troodontid we only know from a tooth.

In dinosaur news this week:

There’s a new herrerasaur, Ptychotherates bucculentus
Hadrosaurs may have injured their tails while mating
A Barosaurus with a long whip-like tail had a fracture at the tip of its tail
A tyrannosaur lost the tip of its tooth in the skull of an Edmontosaurus
A Plateosaurus with a bone infection in its right arm is the oldest known dinosaur bone infection
Cancer has been around for millions of years, including in dinosaurs
A few titanosaurs were found with cysts in their tails
A mamenchisaurid sauropod had a tumor on its shoulder and arm

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Transcript

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0:00.0	Before we get into this episode, a quick reminder that we have our annual survey going.
0:05.0	And if you want to tell us what you think about our show, any specific segments, what you like, what could be improved.
0:11.6	You can go to Iknowdino.com slash survey.
0:15.5	New and improved link without a bunch of bloat.
0:18.3	Yes.
0:19.2	We have a handful of responses now, which is great.
0:22.1	Thank you.
0:22.5	But we'd like to know more.
0:31.2	Hello and welcome to I Know Dino.
0:33.5	Keep up with the latest dinosaur discoveries and science with us.
0:36.5	I'm Garrett.
0:37.1	And I'm Sabrina.
0:38.1	And today in our 565th episode.
0:41.8	We're talking about paleopathologies.
0:45.1	Oh, yeah.
0:45.9	Yeah, which is good and bad, I think.
0:48.4	I mean, they're always interesting, but, you know, they can get gruesome.
0:53.4	They can make it cringe a little bit, yeah.
0:54.9	It's the injuries and the diseases that paleontologists have found in dinosaurs.
0:58.9	It includes things like cancer, tumors, infections, bite marks, sometimes with teeth sticking out.
1:05.5	That's what we talk about today.
1:07.3	Fractures and a lot more.
	...

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