dinosaurs

Lizard Has One-Way Breathing; Hints at How Dinosaurs Breathed?

The savannah monitor lizard (Varanus exanthematicus) doesn’t eat like a bird, but it does breathe like one, a new study has discovered. Air flows only one way through its lungs—other than the American alligator, it’s the only other known reptile found to have this trait. That’s surprising, because the unidirectional airflow of birds was thought to have…

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