Chuckwalla is the name for several kinds of large, harmless lizards found in the rocky deserts of the United States and Mexico. Chuckwalla can live up to twenty five years or about twenty because as it gets older it gets slower and gets attacked by its predators. Chuckwalla live on flowers and plants. The largest species grow to about two feet. When being chased by a predator the Chuckwalla will run to a crack in a rock and hide till the predators leave.