[ Back to EurekAlert! ]

Contact: Lee J. Siegel
University of Utah

Savannah Monitor Lizard

Caption: A monitor lizard hugs a branch. A new University of Utah study found that air flows mostly in a one-way loop through the lungs of savannah monitor lizards, just as it does in birds, alligators and presumably dinosaurs. The discovery means this unusual one-way airflow may have evolved 270 million years ago -- 100 million years before birds first flew.

Credit: Cheryl A. Ertelt.

Usage Restrictions: Credit with copyright bug required.

Related news release: The mystery of lizard breath

[ Back to EurekAlert! ]