There is even a species of gecko, the Atlas Day gecko, that thrives in the cold mountain ranges of Morocco. In the U.S., geckos are common in Texas, Florida, California, and other southern states.

These geckos have adapted their webbed feet not only to help them stay atop, but to bury beneath the dunes of the Namib Desert. Strictly nocturnal lizards, they spend the day in self-dug burrows ...