After she has covered them up, she never sees them again. The young hatch after two to three months of incubating. Temperatures have to be consistant for development. When hatched, youngsters measure about 10 inches and grow up to three feet in one year. Iguanas can live up to 25 years.
Older iguanas are strict vegetarians, feeding primarily on plants.
This is because young lizards need to build up their strength quickly to survive. The protein in the insects helps them survive in drought conditions. During high precipitation and plant growth, adult iguanas store large amounts of fat, especially in areas of the jaw and neck, to survive in times of drought.