Archive for December 17th, 2013

The Mystery of Lizard Breath: One-Way Air Flow May Be 270 Million Years Old

Air flows mostly in a one-way loop through the lungs of monitor lizards — a breathing method shared by birds, alligators and presumably dinosaurs, according to a new University of Utah study. The findings — published online Dec. 11 in the journal Nature — raise the possibility this breathing pattern originated 270 million years ago, […]