Matt Roseveare / Parson's chameleon (Calumma parsonii) catching insect with tongue, Eastern rainforests of Madagascar, September.
Tui De Roy / Marine iguana (Amblyrhynchus cristatus) basking on driftwood, Fernandina Island, Galapagos, South America.
Chris Mattison / High-casqued chameleon / Von Hoehnel's chameleon (Trioceros hoehnelii) female and young on branch, Kenya, Africa.
Jack Dykinga / Sandhill cranes (Antigone candensis), in flight against the setting full moon at dawn. Whitwater Draw, Arizona Game and Fish Wildlife area, Arizona, USA.
Alex Hyde / Common Lizard (Zootoca vivipara) basking on lichen-covered tree stump. Peak District National Park, Derbyshire, UK. August.
Etienne Littlefair / Mertens' water monitor (Varanus mertensi) in water, split level view, Adelaide River, Northern Territory, Australia. October. Winner of the threatened species criteria in Australia Geographic Natu...
Brian Bevan / Grass snake (Natrix natrix) at pond edge sensing with tongue, Bedfordshire, UK, September.
Brian Bevan / Grass snake (Natrix natrix) sensing with tongue while swimming through duckweed in pond, Bedfordshire, UK, September.
John Cancalosi / Captive corn snake (Pantherophis guttatus) eating an Eastern chipmunk (Eutamias sp.). The chipmunk was found dead and fed to the captive snake. North America.
Robert Thompson / Crested gecko (Correlophus ciliatus), New Caledonia, controlled conditions
Claudio Contreras / Cuban Iguana (Cyclura nubila nubila), Guanahacabibes Peninsula National Park, Pinar del Rio Province, western Cuba.
Claudio Contreras / Cuban / Clouded rock iguana (Cyclura nubila), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Ciego de Avila, Cuba.
Edwin Giesbers / RF - Sand lizard (Lacerta agilis) the Netherlands. (This image may be licensed either as rights managed or royalty free.)
Robert Valentic / Golden tree snake (Chrysopelea ornata) male, Patong Beach, Phuket Island, Thailand. Controlled conditions
Nick Garbutt / Komodo dragon (Varanus komodoensis) male running. Rinca Island, Komodo National Park, Indonesia. Endangered.
John Cancalosi / Juvenile Timber rattlesnakes (Crotalus horridus) massed together at nest site, Pennsylvania, USA.
John Cancalosi / Timber rattlesnakes (Crotalus horridus) at nest site with young, Pennsylvania, USA.
John Cancalosi / Corn snake (Pantherophis guttatus) young hatching, captive. Maryland, USA.
Andres M. Dominguez / Ocellated or jewelled lizards (Timon lepidus) basking on rocks, Los Alcornocales Natural Park. Southern Spain. May.
Claudio Contreras / Catalina Desert Iguana (Dipsosaurus catalinensis), Catalina (Santa Catalina) Island, Loreto Bay National Park, Gulf of California (Sea of Cortez), Baja California, Mexico, May, Second place in Visions...
Nick Garbutt / Sumatran pit viper (Trimeresurus sumatranus) juvenile on tree trunk, in tropical rainforest. Danum Valley, Sabah, Borneo, Malaysia.
Fabio Pupin / Meadow viper, (Vipera ursinii), basking in alpine meadow, Apennines, Italy, September . Non-ex.
Fabio Pupin / Ruwenzori side-striped chameleon, (Trioceros rudis), hanging from fern, Nyungwe Forest NP, Rwanda, December . Non-ex.
Fabio Pupin / Gallot's lizard, (Gallotia galloti), male in habitat, Tenerife, Canary Islands, Spain, April . Non-ex.
Fabio Pupin / Moorish gecko, (Tarentola mauritanica), hunting on window, Italy, April . Non-ex.
Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), sidewinding on dune, Namib desert, Namibia, February . Non-ex.
Jo-Anne McArthur / We Animals / Rattlesnake skins pinned to a wall, with bloody handprints and signatures of those who have skinned snakes at at the annual Rattlesnake Roundup, Sweetwater, Texas, USA. Highly commended in the Wildlif...
Morley Read / Tropical flat snake (Siphlophis compressus) climbing on a flowering bromeliad (Aechmea) in the Amazon rainforest, Orellana Province, Ecuador.
Morley Read / Slow motion clip of a Forest whiptail lizard (Kentropyx pelviceps) blinking its eye, showing nictitating membrane crossing the eye, Amazon rainforest, Orellana Province, Ecuador.
Morley Read / Slow motion clip of a Linnaeus' sipo snake (Chironius exoletus) with open mouth, part of threat display, Amazon rainforest, Orellana Province, Ecuador.
Lucas Bustamante / Marine Iguanas (Amblyrhynchus cristatus) basking. Fernandina Island, Galapagos Islands.
John Shaw / Namaqua chameleon (Chamaeleo namaquensis) catching larvae with its extended tongue. In the Namib desert near Swakopmund, Namibia.
John Chan / Two male Southern Pacific rattlesnakes (Crotalus oreganus helleri) fighting during mating season. This behaviour is known as a "combat dance", and is used to determine dominance and the right to mate...
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.
David Tipling / Common European adder (Vipera berus) two males fighting over a female. Holt, North Norfolk, England, UK. April
David Tipling / Common European adder (Vipera berus) two males fighting over a female, Holt, North Norfolk, England, UK. April
David Tipling / Common European adder (Vipera berus) two males fighting over a female, Holt, North Norfolk, England, UK. April.
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.
David Gallan / Lace monitor (Varanus varius) sensing with tongue, New South Wales, Australia, December.
Daniel Heuclin / Horned viper (Vipera ammodytes) in natural setting, Turkey.
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 .