Robert Valentic / Central bearded dragon (Pogona vitticeps) basking in mallee / heathland habitat on the Murrayville Track in the Big Desert Wilderness of north-western Victoria, Australia.

Robert Valentic / Phuket horned tree lizard (Acanthosaura phuketensis) near Bang Pae Waterfall, Khao Phra Thaew NP, Phuket Island, Thailand.

Tim Laman / Portrait of Agamid Lizard (Hypsilurus modestus). Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expedition)

Mitsuaki Iwago / Thorny Devil (Moloch horridus) walking across sand, Australia

Juergen Freund / Boyds Forest Dragon climbing tree {Hypsilurus boydii} Mossman Gorge, Queensland, Australia

Michael & Patricia Fogden / Thorny Devil (Moloch horridus) in the desert near Ayers Rock, Uluru-Kata Tjuta National Park, Australia

Michael & Patricia Fogden / Frilled Lizard (Chlamydosaurus kingii) with frill raised and mouth open in defensive posture on tree log, Australia

Michael & Patricia Fogden / Boyd's Forest Dragon (Hypsilurus boydii) portrait, Queensland, Australia

Gerry Ellis / Thorny Devil (Moloch horridus) overhead view, native to the Central Desert, Western Australia

Mitsuaki Iwago / Thorny Devil (Moloch horridus) on sand, Australia

Robert Valentic / Gippsland Water Dragon (Intellegama lesuerii howittii) male, upper Pambula River, New South Wales, Australia. Controlled conditions

Steven David Miller / Eastern water dragon (Intellagama lesueurii lesueurii) male basking. Lane Cove National Park, New South Wales, Australia.