According to National Geographic, a beautifully preserved fossil of a 150-million-year-old dinosaur hatchling lends weight to the argument that hairlike feathers were the norm, not the exception, among all kinds of dinosaurs.
This dinosaur is older and comes from a completely different branch of the dinosaur tree from other known feathered species.
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Photograph by H. Tischlinger, Jura Museum Eichstätt
"Squirrel-Tail Dinosaur Fossil Upends Feather Theory" on National Geographic News
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