When the lizards feel threatened by a predator, they dive underwater and produce a bubble over their heads to breathe.

New research reveals that scuba-diving lizards, described as "the chicken nuggets of the forest," use a bubble to breathe underwater

A semiaquatic lizard called a diving anole produces a special bubble atop its head to breathe underwater and avoid predators on land, according to research.

Little lizards that wear snout bubbles underwater really do seem to be using them as tiny scuba tanks. Water anoles (Anolis aquaticus) made headlines a few years ago when they were caught proudly holding onto shiny pockets of air while submerged in their Costa Rican streams.