Ingo Arndt / Gould's monitor / goanna (Varanus gouldii) warming up on road, Northern Territory, Kakadu National Park, Australia, December

Ingo Arndt / Gould's monitor / goanna (Varanus gouldii) warming up on road, Northern Territory, Kakadu National Park, Australia, December

Jiri Lochman / Sand Monitor (Varanus gouldii), Cape Range National Park, Ningaloo Coast UNESCO Natural World Heritage Site, Western Australia.

Ingo Arndt / Gould's Goanna (Varanus gouldii) warming up on road, Kakadu National Park, Australia

Ingo Arndt / Gould's Goanna (Varanus gouldii) warming up on road, Kakadu National Park, Australia

Robert Valentic / Gould's monitor / Sand goanna {Varanus gouldii} juvenile foraging for lizards on Gibber Plain, Pimba, South Australia

Gerry Ellis / Gould's Goanna (Varanus gouldii) crossing dirt road, arid north central Australia

Martin Willis / Gould's Goanna (Varanus gouldii), Dryandra Woodland State Forest, Western Australia, Australia

Roland Seitre / Gould's Goanna (Varanus gouldii) walking in desert, ?Windorah, Queensland, Australia.

Bruce Thomson / Sand goanna / Gould's goanna (Varanus gouldii) feeding on a turtle egg after digging up nest, Dalby, Queensland, Australia.

Etienne Littlefair / Sand monitor (Varanus gouldii) near Alice Springs, Northern Territory, Australia, January.

Etienne Littlefair / Sand monitor (Varanus gouldii), Mt. Connor area, Northern Territory, Australia, November.

Bert Willaert / Sand monitor (Varanus gouldii) portrait. Dryandra Woodland, Western Australia. November.