Some headbutting animals suffer brain damage from the shock; Plus Mississippi has a new most complete dinosaur; Histology can help tell a dinosaur fossil from other dinosaurs; and more.

For links to every news story, all of the details we shared about Saurornithoides, and our fun fact check out https://iknowdino.com/Saurornithoides-Episode-505/

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Dinosaur of the day Saurornithoides, a troodontid from Mongolia named in 1924 by Osborn in the same paper as Velociraptor.

In dinosaur news this week:

• Paleontologists reviewed what it means to have a dome-head and to headbutt like a pachycephalosaurid (and other prehistoric animals)
• Mississippi has a new most complete dinosaur, but the species is still a mystery
• Histology can tell us if a fossil belonged to a dinosaur or another type of animals

This episode is brought to you by Brilliant, the app with thousands of bite-sized, interactive lessons on cutting-edge topics. Anyone interested in paleontology will particularly like their courses in chemistry, which underlie the fossilization process, as well as data analysis, used to model dinosaur populations. Start your 30-day free trial today! Plus, I Know Dino subscribers can get an extra 20% off a premium annual subscription here.

You can win a large Spinosaurus tooth, fossilized leaf, and more by winning our Di-Know-It-All Challenge! Each week from episode 502 to 509 we'll read a puzzle on the show which you can enter to win by answering questions. This week you can enter at bit.ly/dinochallenge505 and if you're a patron you can answer the patron question at patreon.com/posts/108019451. All the rules for the challenge are at bit.ly/dinochallenge24

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