Shibai Xiao / Hainan leopard gecko (Goniurosaurus hainanensis) young photographed on white background, China.

Shibai Xiao / Tokay gecko (Gekko gecko) jumping to a higher tree, Guangxi Province, China.

Shibai Xiao / Tokay gecko (Gekko gecko) close up portrait of head with black background, Guangxi Province, China.

Bert Willaert / Banded Ground Gecko (Geckoella deccanensis) portrait. Western Ghats, India, July.

Inaki Relanzon / Leaf tailed gecko (Uroplatus sikorae) leaping from branch, Ranomafana National Park, East of Madagascar.

Alex Hyde / Lined Leaf-tailed Gecko {Uroplatus lineatus} showing darker nocturnal colouration, camouflaged amongst dead palm fronds. Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Close-up of the underside of foot of Leaf-tailed gecko {Uroplatus sikorae} as it walks on vertical glass. The finely divided setae on the toe pads stick the gecko to the smooth surface through van der...

Alex Hyde / Leaf-tailed gecko {Uroplatus sikorae} licking its eye to clean it. Masoala Peninsula National Park, north east Madagascar.

Nick Garbutt / Mossy Leaf-tailed gecko (Uroplatus sikorae) cleaning eye with tongue. Masoala National Park, Madagascar.

Nick Garbutt / Three Mossy Leaf-tailed Geckos (Uroplatus sikorae) in differing colour morphs. From forest understorey at night. Masoala National Park, Madagascar. Photographed on white background

Stephen Dalton / Henkel's leaf tailed gecko (Uroplatus henkeli) licking its eye with its tongue, controlled conditions

Stephen Dalton / Gecko (Tarentola sp) close up of feet gripping glass, controlled conditions