These Dinosaurs Had a Complicated Air Conditioner in Their Skull

These Dinosaurs Had a Complicated Air Conditioner in Their Skull

But paleontologist Lawrence M. Witmer has discovered that a group of dinosaurs called ankylosaurs had a secret weapon. It was even more important than their tanklike armor, and it was hidden inside their skull: their nasal passages. In in ankylosaur fossils, the answer was relatively easy to find: their nasal passages were well-preserved inside their bony skull. But the answer is proving more elusive in dinosaurs whose skull had large openings, including long-necked sauropods and carnivorous dinosaurs such as Tyrannosaurus rex. \"Right now we're seeing this unprecedented global warming, global climate change, which is disrupting all kinds of weather patterns,\" he says.

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