Solvin Zankl / Sand lizard (Lacerta agilis) head portrait, climbing on leaf, Germany

Ross Hoddinott / Sand lizard (Lacerta agilis) close up of male on sand, Studland bay (National Trust) near Swanage, Dorset, England, UK. April 2010.

Edwin Giesbers / Sand lizard {Lacerta agilis} male with Common blue butterfly {Polyomattus icarus} resting on its head, the Netherlands

Geoff Simpson / Sand lizard male in breeding colour {Lacerta agilis} Ainsdale NNR, Lancs, UK

Chris Packham / Sand lizard male (Lacerta agilis) UK

Colin Varndell / Female sand lizard (Lacerta agilis), Dorset, England, UK, April

Michel Poinsignon / Sand lizard (Lacerta agilis) female next to a log in amongst vegetation, Arnaville Lorraine, France, May.

Colin Varndell / Adult female Sand Lizard (Lacerta agilis) basking on clay. Dorset, UK, April.

Colin Varndell / Adult female Sand Lizard (Lacerta agilis) basking on log. Studland Heath Nature Reserve, Dorset, UK, September.

Ross Hoddinott / Close-up of male Sand Lizard (Lacerta agilis). Studland (NT), near Swanage, Dorset, UK, April.

Ross Hoddinott / Sand Lizard (Lacerta agilis) male portrait. Studland, near Swanage, Dorset, UK, April.

Ross Hoddinott / Sand Lizard (Lacerta agilis) male. Studland, near Swanage, Dorset, UK, April.

Colin Varndell / Adult male Sand Lizard (Lacera agilis) basking on log. Studland Heath, Dorset, UK, June.

Colin Varndell / Male Sand Lizard (Lacerta agilis) basking. Dorset, UK, April.

Colin Varndell / Head of male Sand lizard (Lacerta agilis) basking on heathland in spring, East Dorset, UK, April

Colin Varndell / Male Sand lizard (Lacerta agilis) basking on heathland in spring, East Dorset, UK, April

Florian Möllers / Sand lizard (Lacerta agilis) male on a stone wall, Oekowerk in the Grunewald, Berlin, Germany, June

Florian Möllers / Sand lizard (Lacerta agilis) male on a stone wall, portrait, Oekowerk in the Grunewald, Berlin, Germany, June

Solvin Zankl / Sand Lizard (Lacerta agilis) female portrait on rock

Colin Varndell / Female Sand lizard (Lacerta agilis) basking, Dorset, UK, May

Ross Hoddinott / Sand lizard (Lacerta agilis) male on sand dunes, Studland bay (National Trust) near Swanage, Dorset, England, UK. April 2010.

Colin Varndell / Sand lizard (Lacerta agilis) male in breeding condition, climbing within bricks, Dorset, UK

Stephen Dalton / Sand lizard (Lacerta agilis) male on heathland. Europe

Dietmar Nill / Sand lizard (Lacerta agilis) feeding on prey, Germany

Dietmar Nill / Sand lizard {Lacerta agilis} Germany

Inaki Relanzon / Female Sand Lizard / Pyreneam Lizard (Lacerta agilis) Pyrenees, Catalonia, Spain. September 2009 October 2009

Inaki Relanzon / Female Sand Lizard / Pyreneam Lizard (Lacerta agilis) Pyrenees, Catalonia, Spain. September 2009 October 2009

Edwin Giesbers / Sand lizard {Lacerta agilis} male and female pair, the Netherlands

Edwin Giesbers / Sand lizard {Lacerta agilis} female, the Netherlands

Edwin Giesbers / Sand lizard {Lacerta agilis} male in breeding colours, the Netherlands;

Edwin Giesbers / Sand lizard {Lacerta agilis} male in breeding colours, the Netherlands

Edwin Giesbers / Sand lizard {Lacerta agilis} male in breeding colours, the Netherlands

Wild Wonders of Europe / Wothe / Male Sand lizard (Lacerta agilis) warming up on a tree trunk in the morning sun, Eastern Slovakia, Europe, June 2009

Tony Phelps / Sand lizard (Lacerta agilis) adult male. Purbeck, Dorset UK, April 2008

Tony Phelps / Sand lizard {Lacerta agilis} male, Dorset, UK

Thomas Marent / Sand Lizard (Lacerta agilis) male, Switzerland

Tony Phelps / Sand lizard {Lacerta agilis} male with shed skin. Purbeck, Dorset, UK

Tony Phelps / Sand excavation for Sand lizard {Lacerta agilis} management, Wareham forest, Dorset, UK

Tony Phelps / Sand lizard {Lacerta agilis} female laying eggs in burrow, Purbeck, Dorset, UK

Tony Phelps / Sand lizard {Lacerta agilis} adult male camouflaged against gorse. Dorset, England, UK

Tony Phelps / Sand lizard {Lacerta agilis} male on gorse flowers, Purbeck, Dorset UK

Tony Phelps / Male Sand lizard basking {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Female Sand lizard by nest burrow {Lacerta agilis} Purbeck, Dorset, UK

Geoff Simpson / Male Sand lizard in breeding colour {Lacerta agilis} Ainsdale NNR, Lancashire, UK

Geoff Simpson / Male Sand lizard in breeding colour {Lacerta agilis} Ainsdale NNR, Lancashire, UK

Tony Phelps / Nest burrows of Sand lizard {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Male Sand lizard {Lacerta agilis} with tick infestation, Purbeck, Dorset, UK

Andy Sands / Sand Lizard {Lacerta agilis} male showing aggression in breeding season, Captive

Andy Sands / Sand Lizard {Lacerta agilis} male in breeding season, Captive. Note - regenerated tail

Flip de Nooyer / Sand Lizard (Lacerta agilis) close up, Europe

Jan Vermeer / Sand Lizard (Lacerta agilis) portrait, increasingly rare species, Europe

Jan Vermeer / Sand Lizard (Lacerta agilis) portrait, increasingly rare species, Europe

George McCarthy / Sand lizard with eggs {Lacerta agilis} Sussex, UK

John Cancalosi / Sand lizard portrait {Lacerta agilis} UK, endangered in UK

George McCarthy / Sand lizard portrait {Lacerta agilis} Sussex, UK

George McCarthy / Sand lizard {Lacerta agilis} Sussex, UK

Tony Phelps / Sand lizard {Lacerta agilis} female by nest burrow, Purbeck, Dorset, UK

Geoff Simpson / Sand lizard male {Lacerta agilis} Ainsdale NNR, Lancashire, UK

Tony Phelps / Male Sand lizard {Lacerta agilis} Dorset, England, UK

Tony Phelps / Sand lizard hatchling, one-day-old {Lacerta agilis} Purbeck, Dorset, England, UK

Tony Phelps / Microhabitat of Sand lizard {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Sand lizard female emerging from nest burrow {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Sand lizard eggs {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Sand lizard male beside shed skin {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Sand lizard male in breeding colour {Lacerta agilis} Purbeck, Dorset, UK

Tony Phelps / Sand lizard male defensive behaviour at nest burrow enrance {Lacerta agilis} Dorset, UK

Artur Tabor / Adder eating a Sand Lizard (Lacerta agilis). Poland

Jane Burton / Sand lizard (Lacerta agilis) on Heather (Calluna vulgaris)

Geoff Simpson / Sand lizard {Lacerta agilis} male in breeding colour, Ainsdale NNR, Lancashire, UK

Jose B. Ruiz / Sand lizard male {Lacerta agilis} Ainsdale NP Lancashire UK

Tony Phelps / Sand lizard female excavating nest burrow {Lacerta agilis} Purbeck Dorset UK

Tony Phelps / Sand lizard hatchling (note short tail) {Lacerta agilis} Purbeck Dorset UK

Tony Phelps / Sand lizard {Lacerta agilis} male killed by Magpie {Pica pica} Purbeck Dorset UK

Tony Phelps / Female Sand lizard excavating nest burrow {Lacerta agilis} Purbeck Dorset UK

Chris Packham / Sand lizard male {Lacerta agilis} UK

Tony Phelps / Sand lizard egg laying area {Lacerta agilis} Purbeck Dorset UK