These lizards are native to Central Australia. They prefer semi-arid to arid woodland habitats. Time is spent both on the ground and in trees. They may be found perched on bush branches and even on fence posts. Bearded dragons are omnivorous and consume many types of insects, small vertebrates, and vegetation including fruits and flowers.
Sexual maturity is reached at one to two years of age.
Mature females typically lay clutches of eleven to sixteen oblong leathery eggs in early summer. The eggs are laid in nests dug in sandy soil and the unattended young hatch 3 months later. A bulky body and the habit of basking allows them to store heat, making it possible to operate at lower temperatures than other lizards. They can also survive higher temperatures for several hours, since they can regulate body temperature by evaporation. When intimidated, they flatten their bodies and stand erect with mouth gaping.