Robert Valentic / Golden tree snake (Chrysopelea ornata) male, Patong Beach, Phuket Island, Thailand. Controlled conditions

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 / Heath Monitor (Varanus rosenbergi) male enacting a threat display, in mallee/heath habitat near Pinnaroo, South Australia.

Robert Valentic / Rough-scaled death adder (Acanthophis rugosus) waving tip of tail as a lure to entice prey within striking range. Mount Isa, Queensland Australia.

Robert Valentic / Striped legless lizard (Delma impar) female, in volcanic plain near Reedesdale in central Victoria, Australia.

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

Robert Valentic / Portrait of an adult Three-toed Earless Skink (Hemiergis talbingoensis) Tallarook, Goulburn River in central Victoria, Australia.

Robert Valentic / Monocled cobra (Naja kaouthia) on rubber plantation at Phak Lok, Phuket Island, Thailand .

Robert Valentic / Short-nosed fruit-bat (Cynopterus brachyotis) roosting, Ko Chang Island, Thailand.

Robert Valentic / Eastern brownsnake (Pseudonaja textilis) juvenile. Australia.

Robert Valentic / Coastal taipan (Oxyuranus scutellatus) tasting air, Julatten, north Queensland, Australia,

Robert Valentic / Lowland blotched blue-tongue (Tiliqua nigrolutea) on a coastal bluff in the Bay of Fires region of north-eastern Tasmania, Australia, spring.

Robert Valentic / Eastern tiger snake (Notechis scutatus) female, Yarra River corridor in suburban Melbourne, Victoria, Australia, in mid-summer. She is in a defensive pre-strike position with hood expanded, accompanie...

Robert Valentic / Red-bellied Blacksnake (Pseudechis porphyriacus) basking on rock, Lerderderg Gorge, Victoria, Australia, February.

Robert Valentic / Following the desert rains a Holy cross frog {Notaden benneti} comes to the surface after a long period underground, Nyngan, New South Wales, Australia

Robert Valentic / Spalding's ctenotus (Ctenotus spaldingi) basking on the volcanic plains to the north of Melbourne at Somerton in Spring.Controlled conditions.

Robert Valentic / Southern rainbow skink (Carlia tetradactyla) from Yass, New South Wales, Australia. Controlled conditions.

Robert Valentic / Ragged snake-eyed skink (Cryptoblepharus pannosus) from Waukaringa, Australia. Controlled conditions.

Robert Valentic / Metallic snake-eyed skink (Cryptoblepharus metallicus) from riparian Paperbark Forest near Gregory Downs in the Gulf of Carpentaria, Queensland, Australia.

Robert Valentic / Inland snake-eyed skink (Cryptoblepharus australis) from Acacia shrubland, central Queensland, Australia. Controlled conditions.

Robert Valentic / Grassplains ctenotus (Ctenotus agrestis) gravid female from a blacksoil plain, Lorna Downs Station in far western Queensland, Australia.

Robert Valentic / Desert rainbow skink (Carlia triancantha) from a desert sandplain, Barkly Tableland, Northern Territory, Australia. Controlled conditions.

Robert Valentic / White-faced ctenotus (Ctenotus robustus) juvenile, from tropical savannah woodland near Katherine in the Top End of the Northern Territory, Australia. Controlled conditions.

Robert Valentic / Tussock rainbow skink (Carlia vivax) male from brigalow habitat, Queensland, Australia. Controlled conditions.

Robert Valentic / Three-toed snake-tooth skink (Coeranoscincus reticulatus) Queensland, Australia. Controlled conditions.

Robert Valentic / Stony downs ctenotus (Ctenotus astarte) from Boulia, western Queensland, Australia. Controlled conditions.

Robert Valentic / Spalding's ctenotus (Ctenotus spaldingi) male from Caroline Springs, Melbourne, Australia. Controlled conditions.

Robert Valentic / McCoy's Skink (Anepischetosia maccoyi) from wet schlerophyll forest near Korumburra in the South Gippsland, Victoria, Australia. Controlled conditions.

Robert Valentic / McCoy's skink (Anepischetosia maccoyi) female from Snow Gum, Mt Buller, Great Dividing Range in Victoria, Australia.

Robert Valentic / Green tree snake (Dendrelaphis punctulatus) juvenile from Brigalow habitat near Moonie in inland SE Queensland, Australia.

Robert Valentic / Eastern three-lined skink (Acritoscincus duperreyi) basking near Wonthaggi in the Bass Coast region in Victoria, Australia.

Robert Valentic / Eastern three-lined skink (Acritoscincus duperreyi) from coastal dunes, Wonthaggi, Bass Coast region of Victoria, Australia. Controlled conditions.

Robert Valentic / Brown tree snake (Boiga irregularis) juvenile from Normanton, Queensland, Australia. Controlled conditions.

Robert Valentic / Two-spined rainbow skink (Carlia amax) forages on open rock faces, Boodjamulla NP, NW Queensland. Summer.

Robert Valentic / Two-clawed worm-skink (Anomalopus leukartii) from Murrurundi, New South Wales, Australia. Controlled conditions.

Robert Valentic / Thick-tailed gecko (Underwoodisaurus milii) female, Ironbark Woodland habitat, Victoria, Australia. Controlled conditions.

Robert Valentic / Northern spiny-tailed Gecko (Strophurus ciliaris) from desert sand plain habitat, Tennant Creek, central Northern Territory, Australia. Controlled conditions.

Robert Valentic / Marble-faced delma (Delma australis) basking on sand within mallee / heathland. Near Pinnaroo, Murray Mallee, South Australia.

Robert Valentic / Lowland copperhead snake (Austrelaps superbus) male basking on rusty trailer, on farm in evening. Melbourne, Victoria, Australia.

Robert Valentic / Lowland copperhead snake (Austrelaps superbus) male basking on rusty trailer, on farm at sunset. Melbourne, Victoria, Australia.

Robert Valentic / Copper-tailed skink (Ctenotus taeniolatus) on rock. New South Wales, Australia.

Robert Valentic / Collett's snake (Pseudechis colletti) male tasting the air with tongue. Endemic to Black Soil Plains, Central Queensland, Australia. Captive.

Robert Valentic / Collett's snake (Pseudechis colletti) male. Endemic to Black Soil Plains, Central Queensland, Australia. Captive.

Robert Valentic / Coastal taipan snake (Oxyuranus scutellatus) male. Occurs in Australia and New Guinea. Captive.

Robert Valentic / Burton's legless lizard (Lialis burtonis) basking in hummock grass in mallee / heathland. Near Pinnaroo, Murray Mallee, South Australia.

Robert Valentic / Broad-headed snake (Hoplocephalus bungaroides) female tasting the air whilst basking. Heathcote, New South Wales, Australia.

Robert Valentic / Blotched blue-tongue skink (Tiliqua nigrolutea) female gaping with tongue out, in defense against perceived threat. Lake Tantangara, Snowy Mountains, New South Wales, Australia.

Robert Valentic / Alpine tree frog (Litoria verreauxii alpina) male resting on branch. Snowy Mountains, New South Wales, Australia.