Chlamydosaurus kingii

Frilled lizards are diurnal and arboreal, spending most of their day in trees to avoid predators and to feed, and can move bipedally when necessary. They are more active during the wet season and utilize different strategies for thermoregulation and survival during the dry season.

The breeding season runs from September to October, with females laying 8 to 14 eggs in a sunny location underground, which hatch in 2 to 3 months without parental care. The offspring are independent from birth, capable of feeding on small insects.

This lizard displays significant sexual dimorphism, with males being larger and possessing proportionally bigger frills, heads, and jaws. The colors of their frills vary geographically, aiding in camouflage and predator deterrence.

It has been around for approximately 100 million years, with fossil evidence dating back 80 million years. The frilled lizard split from its closest relatives about 10 million years ago.

The conservation status of the frilled lizard is listed as Least Concern, but it faces threats from habitat destruction and increased predation by feral cats. No specific conservation plans are in place, though some are protected in wildlife parks like Wasur National Park in New Guinea.