Visuals Unlimited / Giant New Caledonian Gecko (Rhacodactylus lechianus) with tongue licking its eye.

Daniel Heuclin / Henkel's giant gecko (Rhacodactylus leachianus henkeli) Isle of Pines, New Caledonia, captive.

Daniel Heuclin / Henkel's giant gecko (Rhacodactylus leachianus henkeli) Isle of Pines, New Caledonia, captive.

Daniel Heuclin / Henkel's giant gecko (Rhacodactylus leachianus henkeli) on white background. Isle of Pines, New Caledonia, captive.

Chris Mattison / Mossy New Caledonian gecko (Mniarogekko chahoua) camouflaged on tree trunk captive native to New Caledonia.

Chris Mattison / Mossy New Caledonian gecko (Mniarogekko / Rhacodactylus chahoua) captive from New Caledonia.

Chris Mattison / Mossy New Caledonian gecko (Mniarogekko / Rhacodactylus chahoua) captive from New Caledonia.

Roland Seitre / Sarasin's Giant Gecko (Rhacodactylus sarasinorum) on tree trunk, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / Sarasin's Giant Gecko (Rhacodactylus sarasinorum) on tree trunk, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of regenerating tail, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of foot, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of head, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of head, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) climbing tree and cleaning face with its tongue, captive, Australian Reptile Park, Gosford, New South Wales, Australia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of head, captive, Australian Reptile Park, Gosford, New South Wales, Australia

Roland Seitre / New Caledonia Giant Gecko (Rhacodactylus leachianus) close-up of eye, captive, Australian Reptile Park, Gosford, New South Wales, Australia

Chris Mattison / Bavay's Giant / Mossy New Caledonian Gecko (Miniarogekko chahoua ), captive, occurs New Caledonia

Michael D. Kern / Leach's / New Caledonian Gecko (Rhacodactylus leachianus) captive from New Caledonia

Michael D. Kern / Leach's / New Caledonian Gecko (Rhacodactylus leachianus) captive from New Caledonia

Michael D. Kern / Leach's / New Caledonian Gecko (Rhacodactylus leachianus) captive from New Caledonia

Michael D. Kern / New caledonian giant gecko / Leach's giant gecko {Rhacodactylus leachianus} New Caledonia

Michael D. Kern / New caledonian giant gecko / Leach's giant gecko {Rhacodactylus leachianus} New Caledonia

Daniel Heuclin / New Caledonian Bumpy Gecko (Rhacodactylus auriculatus) in habitat, camouflaged on tree trunk, New Caledonia, endemic.

Daniel Heuclin / New Caledonian Bumpy Gecko (Rhacodactylus auriculatus) New Caledonia, endemic.

Daniel Heuclin / Henkel's giant Gecko (Rhacodactylus henkeli) on tree trunk, Ilot Brosse, New Caledonia. Endemic.

Daniel Heuclin / Henkel's giant Gecko.Rhacodactylus (lecchianus ) henkeli.Ilot Brosse. Endemic..New-Caledonia

Daniel Heuclin / Henkel's giant Gecko (Rhacodactylus henkeli) Ilot Brosse, New Caledonia. Endemic.

Visuals Unlimited / Giant New Caledonian Gecko (Rhacodactylus lechianus), Asia

Michael & Patricia Fogden / New Caledonian Giant Gecko (Rhacodactylus leachianus) camouflaged on tree trunk, New Caledonia