Biologists believe the Argentine black and white tegus could endanger food resources for Georgians and even native animal "Tegus will eat the eggs of ground-nesting birds - including quails and turkeys - and other reptiles," according to the department's website. The invasive species also eats fruit, vegetables, pet food, and small animals including native species like gopher tortoises. They multiply fast - the lizards have few predators and females can lay about 35 eggs in a year, the department said.