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

Daniel Heuclin,Daniel Heuclin / Solomon islands / large prehensile-tailed Skink (Corucia zebrata) Solomon islands

Daniel Heuclin / Solomon islands / large prehensile-tailed Skink (Corucia zebrata) Solomon islands

Rolf Nussbaumer / Four lined skink {Eumeces tetragrammus tretragrammus} juvenile, Texas, USA.

Miles Barton / Sir David Attenborough holding Shingleback skink (Trachydosaurus rugosus / Tiliqua rugosa) on location for BBC series 'Life of Birds', Australia. 1997

Mitsuaki Iwago / Eastern Blue-tongue Skink (Tiliqua scincoides) showing tongue, Australia

Bruce Thomson / Eastern slider (Lerista punctatovittata) also known as a 'legless lizard' coiled up on dry ground, Inglewood, Queensland, Australia.

Bruce Thomson / Blue-tailed skink (Cryptoblepharus egeriae) sunning on rock, Christmas Island, Australia.

Doug Gimesy / Delicate skink (Lampropholis delicata) held in zoologists hand prior to release back into the field, Ecology Australia, Bulleen, Victoria, Australia. Cropped.

Doug Gimesy / Delicate skink (Lampropholis delicata) held in zoologists hand prior to release back into the field, Ecology Australia, Bulleen, Victoria, Australia. Cropped.

Chris Mattison / Sandfish (Scincus scincus) close up of scales.

Chris Mattison / Skink (Saproscincus basiliscus) on tree bark, Josephine Falls, Queensland, Australia

Chris Mattison / Prickly forest skink (Gnypetoscincus queenslandiae) sitting on a rock, Josephine Falls, Queensland, Australia

Chris Mattison / Skink (Hemiergis peronii) on tree bark, Walpole, Western Australia

Chris Mattison / FitzSimmons' burrowing skink (Typhlacontias brevipes) on sand, Swakopmund, Namibia, Africa.

Chris Mattison / Sandfish (Scincus scincus), a species of skink, burrowing in sand dunes, North Africa.

Chris Mattison / Sandfish (Scincus scincus), a species of skink, in sand dunes, North Africa

Bert Willaert / Kopstein's emo skink (Emoia jakati), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Kopstein's emo skink (Emoia jakati), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Pacific bluetail skink (Emoia caeruleocauda), Willaumez Peninsula, New Britain, Papua New Guinea, January

Bert Willaert / Dorsal view of a Moth Skink (Lipinia noctua) on dead leaf, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Portrait of a Moth Skink (Lipinia noctua), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Moth skink (Lipinia noctua), Willaumez Peninsula, New Britain, Papua New Guinea, December

Robert Valentic / Gravelly-soil ctenotus skink (Ctenotus lateralis) sub adult, from Mount Isa, Queensland, Australia.

Robert Valentic / Hosmer's skink (Egernia hosmeri) from the Selwyn Ranges near Cloncurry, Queensland, Australia. Controlled conditions.

Robert Valentic / Eastern barred wedgesnout ctenotus skink (Ctenotus strauchii) from Ilfracombe, Queensland, Australia. Controlled conditions.

Robert Valentic / Southern water skink (Eulamprus tympanum) male from the Merri Creek corridor, Campbellfield, Victoria, Australia. Controlled conditions.

Robert Valentic / Mainland she-oak skink (Cyclodomorphus michaeli) from Nowra, southern New South Wales, Australia, Controlled conditions.

Robert Valentic / Yellow-bellied Water Skink (Eulamprus heatwolei) female from the Delatite River in NE Victoria, Australia. Controlled conditions.

Robert Valentic / Southern grass skink (Pseudemoia entrcasteauxii) female from coastal wetland habitat near Wonthaggi in southern Victoria, Australia. Controlled conditions.

Robert Valentic / Black rock skink (Egernia saxatilis intermedia) male basking adjacent to a tree hollow. Kinglake region in the ranges above Melbourne, Victoria, Australia. Controlled conditions.

Etienne Littlefair / Northen blue-tongue (Tiliqua scincoides intermedia) in monsoon vine thicket habitat, Darwin, Northern Territory, Australia, February.

Etienne Littlefair / Slater's skink (Liopholis slateri) emerging from burrow, Alice Springs, Northern Territory, Australia, October.

Etienne Littlefair / Great Desert Skink (Liopholis kintorei) returning to communal burrow, Yualara, Northern Territory, Australia, November.

Etienne Littlefair / Great Desert Skink (Liopholis kintorei) basking in front of communal burrow, Yualara, Northern Territory, Australia, November.

Etienne Littlefair / Orange-sided bar lipped skink (Eremisascincus douglasi) adult, Darwin, Northern Territory, Australia, January.

Etienne Littlefair / Northern dwarf crowned snake (Cacophis churchilli) feeding on the tail of a skink (Glaphyromorphus sp.) after a battle which concluded when the skink shed its tail and made a lucky escape. Cairns, nor...

Etienne Littlefair / Northern dwarf crowned snake (Cacophis churchilli) grappling with and eventually feeding on the tail of a skink (Glaphyromorphus sp.) after a battle which concluded when the skink shed its tail and ma...

Doug Gimesy / Blue tongued lizard / skink (Tiliqua nigrolutea) that was found inside a postal package labelled as DVD player. It was detected by Australia Post sorting facility in Melbourne. Department of Land, Wat...

Robert Valentic / Yellow-bellied water skink (Eulamprus heatwolei) from a gravel bar along the Delatite River in the highlands of central Victoria, Australia. Controlled conditions.

Enrique Lopez-Tapia / Blue tongued lizard (Tiliqua scincoides) held by Adventure Tours Australia guide, used to teach tourists about the Northern Territory. Australia. 2008. Captive.

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.