Summary
A species of semi-aquatic lizard produces a special bubble over its nostrils to breathe underwater. When these lizards feel threatened by a predator, they dive underwater and breathe a bubble over their heads.
Study confirms that the bubble helps lizards stay underwater for longer periods. Lizards in the control group could stay underwater 32% longer than those with impaired bubble formation.
"Even in animals that seem commonplace, you're always finding new things," he says. "So there's a great opportunity to get people excited about science"
