Tony Phelps / Female Adder tasting the air with tongue {Vipera berus} Purbeck Dorset UK 2000

Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), sidewinding on dune, Namib desert, Namibia, February . Non-ex.

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

Christophe Courteau / Peringuey's adder (Bitis peringueyi) buried in sand, flicking tongue, hunting, Namib Desert, Namibia.

Alex Hyde / Adder (Vipera berus) basking amongst bracken fronds. Peak District National Park, Derbyshire, UK. April.

Tony Phelps / Puff adder (Bitis arietans) moving into ambush position under a bush, DeHoop Nature Reserve, Western Cape, South Africa, January.

Daniel Heuclin / Rhinoceros viper (Bitis nasicornis), from Central Africa, captive, July.

Paul Harris / 2020VISION / Local resident Roy Peters holding two Adders (Vipera berus) male in foreground female behind, Caesar's Camp, Fleet, Hampshire, England, UK, May 2011. Model released.

Danny Green / Male Adder (Vipera berus) tasting the air. Cannock Chase, Staffordshire, UK, October.

Laurie Campbell / Male Adder (Vipera berus) basking on rock, Northumberland National Park, England, May

Klaus Echle / Black Viper / Adder (Vipera berus) head in profile. Black Forest, Germany, June.

Colin Varndell / Adder (Vipera berus) basking on pebble beach. Abbotsbury, Dorset, UK, March.

Danny Green / 2020VISION / Adder (Vipera berus) portrait, Staffordshire, England, UK, April

Danny Green / 2020VISION / Adder (Vipera berus) coiled, basking on moss in the spring sunshine, Staffordshire, England, UK, April. Photographer quote: "OK so snakes are perhaps not as sexy as seals or foxes but I just can't get...

Danny Green / 2020VISION / Adder (Vipera berus) tasting the air with tongue, Staffordshire, England, UK, April. 2020VISION Exhibition. 2020VISION Book Plate.

Danny Green / 2020VISION / Adder (Vipera berus) head portrait, Staffordshire, England, UK, April

Danny Green / 2020VISION / Adder (Vipera berus) basking in the spring, Staffordshire, England, UK, April

Danny Green / 2020VISION / Adder (Vipera berus) basking in the spring sunshine flicking tongue, England, UK, April. Did you know? The Adder is the only venomous snake in the UK.

Colin Varndell / Adult Adder (Vipera berus) basking on pebble beach. Abbotsbury, Dorset, UK, March.

Tony Phelps / Southern Dwarf Adder (Bitis armata) climbing in dune thicket. De Hoop Nature Reserve, Western Cape, South Africa, January.

Jurgen Freund / Researchers Guido and Katja Westhoff work in a mobile lab in the bush. To handle the deadly Common death adder (Acanthophis antarcticus) Guido puts the head and upper portion of the snake in a plastic...

Jurgen Freund / Researchers Guido and Katja Westhoff catching a highly venomous Common death adder (Acanthophis antarcticus) found 10 minutes into their group's evening road collection. The death adder ranks 9th out...

Jurgen Freund / Common death adder (Acanthophis antarcticus) well camouflaged in its natural habitat. Queensland, Australia, February

Pete Oxford / Snake charmer's Egyptian cobra (Naja haje) and African puff-adder (Bitis arietans arietans) Djemaa el-Fna (the square), Marrakech, Morocco, June 2009

Colin Varndell / Adder (Vipera berus) portrait coiled up, Powerstock Common nature reserve, Dorset, England, UK June

Andy Sands / Two male Adders (Vipera berus) fighting / dancing during mating season, Captive, UK

Edwin Giesbers / Portrait of female Adder (Vipera berus) in long grass, the Netherlands

David Tipling / Nightjar {Caprimulgus europaeus} at nest in threat display towards advancing Adder, North Norfolk, UK, May

Niall Benvie / MYN / Adder (Vipera berus) portrait, Kent, England, June

Tony Phelps / Puff adder (Bitis arietans) juvenile amongst succulent plants in karoo habitat, Little Karoo, South Africa

Solvin Zankl / Dwarf puff adder / Peringueys Sidewinding Adder (Bitis peringueyi) hidden in sand of Namib desert, Namibia

Solvin Zankl / Dwarf puff adder / Peringueys Sidewinding Adder (Bitis peringueyi) moving over the loose sand in typical mode of locomotion, Namib desert, Namibia)

Solvin Zankl / Dwarf puff adder / Peringueys Sidewinding Adder (Bitis peringueyi) moving over the loose sand in typical mode of locomotion, Namib desert, Namibia

Solvin Zankl / Dwarf puff adder / Peringueys sidewinding adder (Bitis peringueyi) camouflaged against sand, Namib desert, Namibia

Solvin Zankl / Dwarf puff adder / Peringueys sidewinding adder (Bitis peringueyi) buried in sand with just eyes visible, Namib desert, Namibia

Tony Phelps / Adder (Vipera berus) female with newborn baby, Surrey UK, April 2008

Tony Phelps / Adder (Vipera berus) female and new born baby, Surrey UK, April 2008

Tony Phelps / Adder (Vipera berus) adult female with new born baby, Surrey, UK, April 2008

Andy Sands / Adder (Vipera berus) Male basking on log in spring, next to Celandine flowers, West Sussex, UK April

Jabruson / Close up of skin of Puff adder {Bitis arietans} Tsavo East NP, Kenya

Andy Sands / Female Adder {Vipera berus} close up of head of snake, Sussex, England

Ingo Arndt / Dwarf puff adder / Sidewinder snake crossing sand {Bitis peringueyi} Namibia

Geoff Scott-Simpson / Male Adder showing distinctive zig zag markings {Vipera berus}. Peak District NP, England UK

Geoff Scott-Simpson / Adder {Vipera berus}, female basking. Eastern Moors, Peak District NP.

Tony Phelps / Extracting venom from Puff adder {Bitis arietans} at Liverpool school of tropical medicine, UK