Whatever caused the extinction of the dinosaurs was insufficient to wipe out these smaller members of a once dominant class of animals.
Reptiles are probably the one animal group visitors most associate with desert habitats.
Anza-Borrego Desert State Park protects the richest concentration of lizards and snakes in California. Over 50 different species can be found in Borrego's 600,000 acres. This very high diversity is probably due to the extreme variety of habitats found in our park. Elevation ranges from 300 feet above sea level to over 6,000 feet at Combs peak. With a wide variety of geologic terrain and vegetation cover, Anza-Borrego is an enormously complex ecosystem.