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Think You Know A Dinosaur’s Butt?

February 5, 2021
Psittacosaurus sibiricus
By Nobu Tamura (http://spinops.blogspot.com) – Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=19459366

Think again! Sure, you might know of dinosaur fossils, but scientists still had to make guesses on what a dinosaur’s butt looked like. This is because no preserved fossil of a dinosaur’s butt had ever been found. Until now, that is. The Psittacosaurus is a dinosaur that lived over one hundred million years ago. These labrador-sized dinosaurs walked on their hind legs and had beaks like a parrot. But, even though movies will have you believe otherwise, remains of an entire dinosaur are elusive. A recent research paper published on this dinosaur talks about a new fossil that gives us some insight into the type of butt it had. The fossil also includes soft tissues, which indicates that the dinosaur was brown in color and that it had scales and a specific patch of tissue between the hips and the tail, where its butt would be. This is remarkably similar to the butt of the crocodiles of today! Did you know that ostriches and crocodiles are the closest living beings that resemble dinosaurs? While the discovery of a dinosaur butt might seem funny, it helps continue to build a picture of what dinosaurs were like, and it helps to fill missing pieces of that puzzle. There’s still so much to be discovered!