Sometimes, in an attempt to cross roads, they are hit by automobiles. Roadkills though unfortunate, are valuable specimens. Save it and contact the DNR or us if one is found. Breeding occurs in spring. The male bites and grasps the skin of the females neck during copulation.
Females guard the eggs.
The eggs hatch in August. All five species of Iowa's lizards eat small invertebrates such as crickets, grasshoppers, beetles, spiders, caterpillars, which they chase down and eat. They mash their food up with their strong jaws before swallowing it. Glass lizards are able to eat larger foods because they attain larger sizes than our other lizards. Small snakes, lizards, eggs, rodents, and other prey is consumed in addition to insects.