Desert Duets: Chuckwalla Web Page
In order to mate, female chuckwallas must be two to three years old. In mid- to late summer, they lay six to eight eggs but can lay as many as sixteen! They may not lay eggs every year.
The hatchlings double in size in their first year of life and then their growth slows. The young chuckwallas are especially vulnerable to predators, including mammals, snakes, and birds of prey.