Robert Thompson / Crested gecko (Correlophus ciliatus), New Caledonia, controlled conditions

Lorraine Bennery / Lined leaf-tailed gecko (Uroplatus lineatus) camouflaged on dying leaves. Madagascar.

Chris Mattison / Marico Gecko (Pachydactylus mariquensis latirostris). Namaqualand, Northern Cape, South Africa.

Chris Mattison / Marico Thick-toed Gecko (Pachydactylus mariquensis latirostris). Namaqualand, Northern Cape, South Africa.

Juergen Freund / Green Tree Ants (Oecophylla smaragdina) attacking Common House Gecko (Hemidactylus frenatus) Cairns, Queensland, Australia

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

Paul D Stewart / Photomontage of living gecko feet showing a variety of forms. Gecko feet employ very small subdivided filaments to bond with their substrates at the molecular level using Van Der Waals' forces. Every...

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

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

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

Mark Moffett / Tokay Gecko (Gecko gecko) showing underside of feet

Ch'ien Lee / Huntsman Spider (Heteropoda sp) defending egg sac from Peters' Bow-fingered Gecko (Cyrtodactylus consobrinus), Gua Baju, Sarawak, Borneo, Malaysia

Chien Lee / Giant Crab Spider (Sparassidae) feeding on young Peacock Day Gecko (Phelsuma quadriocellata), Madagascar

Vincent Grafhorst / Namib Sand Gecko (Palmatogecko rangei) in desert, Namibia

Vincent Grafhorst / Namib Sand Gecko (Palmatogecko rangei) in desert, Namibia

Paul Bertner / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) mother and young, Ranomafana National Park, Madagascar

Paul Bertner / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) male camouflaged amongst leaves, Ranomafana National Park, Madagascar

Chien Lee / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) female mimicking wilting leaf, Ranomafana National Park, Madagascar

Chien Lee / Graceful Madagascar Ground Gecko (Paroedura gracilis), Marojejy National Park, Madagascar

Chien Lee / Common Flat-tail Gecko (Uroplatus fimbriatus) on tree, Marojejy National Park, Madagascar

Michael & Patricia Fogden / Namib Sand Gecko (Palmatogecko rangei) cleaning eye with tongue, Namib Desert, Namibia

Piotr Naskrecki / Turnip-tailed Gecko (Thecadactylus rapicauda), Suriname

Thomas Marent / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) mimicking leaves, Andasibe-Mantadia National Park, Madagascar

Thomas Marent / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) mimicking leaves, Andasibe-Mantadia National Park, Madagascar

Piotr Naskrecki / Common Flat-tail Gecko (Uroplatus fimbriatus) its mouth is fitted with more teeth than that of any other land animal, to help capture frogs and other small, slippery animals, Madagascar

Piotr Naskrecki / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) clinging to a twig, Madagascar

Gerry Ellis / Common Barking Gecko (Ptenopus garrulus) licking its eye, Kalahari Desert, Botswana

Mark Moffett / Tokay Gecko (Gecko gecko) close-up detail of the underside of its foot with natural adhesive properties

ZSSD / Fantastic Leaf-tail Gecko (Uroplatus phantasticus) portrait, native to northern Madagascar

Mark Moffett / Tokay Gecko (Gecko gecko) foot pads showing scales which enable it to climb vertical surfaces by using an intermolecular force called Van der Walls force, southeast Asia

Mark Moffett / Tokay Gecko (Gecko gecko) foot pads showing scales which enable it to climb vertical surfaces by using an intermolecular force called Van der Walls force, southeast Asia

Jasper Doest / Mediterranean Gecko (Hemidactylus turcicus), George West, Texas

David Fleetham / Gold dust day gecko (Phelsuma laticauda) silhouetted on leaf, an invasive species, peering over the edge of ginger leaf, Hawaii.

Bruce Thomson / Southern ring-tailed gecko (Cyrtodactylus mcdonaldi) hiding in limestone cave, Chillagoe, Queensland, Australia.

Bruce Thomson / Golden-tailed gecko (Strophurus taenicauda) hunting in a tree at night, Miles, Queensland, Australia.

Bruce Thomson / Golden-tailed gecko (Strophurus taenicauda) hunting in a tree at night, Miles, Queensland, Australia.

Bruce Thomson / Variable dtella (Gehyra versicolor) sheltering in riverine trees, Thomson River, Queensland, Australia.

Bruce Thomson / Variable dtella (Gehyra versicolor) sheltering in riverine trees, Thomson River, Queensland, Australia.

Bruce Thomson / Variable dtella (Gehyra versicolor) scurrying up a tree trunk, Thomson River, Jundah. Queensland, Australia.

Bruce Thomson / Northern leaf-tailed gecko (Saltuarius cornutus) hunting at night, Innisfail, Queensland, Australia.

Bruce Thomson / Northern leaf-tailed gecko (Saltuarius cornutus) hunting at night, Innisfail, Queensland, Australia.

Tui De Roy / Santa Fe leaf-toed gecko (Phyllodactylus barringtonensis), Santa Fe Island, Galapagos, South America.

Ugo Mellone / Northern elegant gecko (Stenodactylus mauritanicus) on sand in Sahara desert, Southern Morocco, Africa.

Ugo Mellone / Algerian sand gecko (Tropiocolotes algericus) on rocky desert floor, Southern Morocco, Africa.