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News Release 05-118

Study Documents Bird-like Breathing Systems in Long-extinct Dinosaurs

Findings bolster link between birds and T. rex

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The predatory dinosaur, <em>Majungatholus atopus</em>, had a very bird-like pulmonary system.

New evidence shows the predatory dinosaur, Majungatholus atopus, had a very bird-like pulmonary system.

Credit: Nicolle Rager Fuller, National Science Foundation


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The pulmonary air sac systems of dinosaurs and birds exhibit striking similarities.

The pulmonary air-sac systems of dinosaurs and birds exhibit striking similarities, including predicted regions air of sac integration into the skeleton. The air sacs act like bellows to move air through the rigid lungs.

Credit: Zina Deretsky, National Science Foundation


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