These lizards spend most of their life in trees (they are primarily arboreal). They live in the north of Australia and in New Guinea. They inhabit moist tropical and warm-temperate forests and in woodlands with shrubby understory. When displayed, the frill is 9.5-14 inches (24-34 cm) wide. When the lizard is at rest, the frill folds down on its shoulders. Adults are over 8 inches (20 cm) long. 