Shibai Xiao / Colour changed tree monitors / Garden lizard (Calotes versicolor) and Bronze skinks (Lygosoma indicum) hanging up at market ready to sell as pets, Hainan Island, China, January 2007. No release availa...

Duncan Murrell / Green garden lizard (Calotes calotes) juvenile, Laxapana Falls, Maskeliya, Sri Lanka.

Duncan Murrell / Green garden lizard (calotes calotes) showing color variation, Deniyaya, Sri Lanka.

Robert Valentic / Emma gray's forest dragon (Calotes emma emma) female from the botanical garden trail in karst rainforest habitat within the Phong Nha Ke Bang National Park in central Vietnam. Dry season.

Robert Valentic / Brown pricklenape (Acanthosaura lepidogaster) female, Phong Nha-Ke Bang National Park in central Vietnam. Dry season.

Robert Valentic / Brown pricklenape lizard (Acanthosaura lepidogaster) female in karst rainforest within the Phong Nha-Ke Bang National Park in central Vietnam. Dry season.

Robin Chittenden / Black-lipped lizard (Calotes nigrilabris) on fern plant, Sri Lanka.

Chien Lee / Forest Crested Agama (Calotes emma), Menglun, Yunnan, China

Tony Wu / Changeable lizard (Calotes versicolor) on a rock, Sri Lanka.

Lucas Bustamante / Black-lipped lizard (Calotes nigrilabris) Horton Plains National Park, Central Province, Sri Lanka.

Lucas Bustamante / Changeable lizard (Calotes versicolor) perched close to a Buddhist temple. Yala National Park, Southern Province, Sri Lanka.

Lucas Bustamante / Close-up of the Green garden lizard (Calotes calotes) scales on the abdomen. Captive, Sinharaja, Southern Province, Sri Lanka.

Dong Lei / Emma Gray's forest lizard (Calotes emma), on forest floor. Xishuangbanna National Nature Reserve, Yunnan Province, China. March.

Thomas Marent / Changeable Lizard (Calotes versicolor), Agumbe Rainforest Research Station, Western Ghats, India

Hanne & Jens Eriksen / Bloodsucker (Calotes versicolor) Oman, November

Dong Lei / Emma Gray's Forest Lizard (Calotes emma) in threat display, Xishuangbanna National Nature Reserve, Yunnan Province, China, March.

Cyril Ruoso / Changeable Lizard (Calotes versicolor) color changes with mood, introduced, Sungei Buloh Nature Park, Singapore

Sue Flood / Garden / Changeable Lizard (Calotes versicolor) amongst plants, Ocean Dunes Golf Course, Phan Thiet, Vietnam.

Bernard Castelein / Common Garden Lizard (Calotes versicolor) on leaf. Rowa wildlife sanctuary, Tripura, India.

Bernard Castelein / Jerdon's Forest Lizard (Calotes jerdoni). Trishna wildlife sanctuary, Tripura, India.

Shibai Xiao / Burmese false blood sucker (Calotes microlepis) resting in forest branch, Bawangling National Nature Reserve, Hainan Island, China.

Sandesh Kadur / Garden lizard (Calotes versicolor) Western Ghats, Southern India

Sandesh Kadur / Lizard (Calotes grandisquamis) head portrait, Western Ghats, India

Sandesh Kadur / Lizard (Calotes grandisquamis) on branch, Western Ghats, India

Chien Lee / Forest Crested Agama (Calotes emma) lizard, Krabi, Thailand

Chien Lee / Forest Crested Agama (Calotes emma) lizard, Krabi, Thailand

Ian Lockwood / Common Green Forest Lizard(Calotes calotes) juvenile, Sri Lanka,

Ian Lockwood / Common Green Forest Lizard(Calotes calotes) Sinharaja Forest Reserve, Sri Lanka, May

Bernard Castelein / Garden lizard (Calotes versicolor) on tree trunk, Keoladeo Ghana / Bharatpur NP, Rajasthan, India

Bernard Castelein / Garden lizard (Calotes versicolor) on tree trunk, Keoladeo Ghana / Bharatpur NP, Rajasthan, India

PREMAPHOTOS / Garden lizard {Calotes versicolor} male in breeding colours, Nepal

PREMAPHOTOS / Garden lizard {Calotes versicolor} female on rock in tropical dry forest, Sri Lanka

PREMAPHOTOS / Agamid lizard {Calotes cristatellus} in rainforest, Sumatra

PREMAPHOTOS / Garden lizard {Calotes versicolor} female on vegetation in tropical dry forest, Sri Lanka

Matthew Maran / Tree Lizard {Calotes calotes} on banana plant, Sinharaja Rainforest , Sri Lanka

Bernard Castelein / Garden lizard {Calotes versicolor} Chitwan NP, Nepal

Elio Della Ferrera / Common Green Forest Lizard{Calotes calotes} camouflaged on green leaf, Sinharaja Forest Reserve, Sri Lanka

PREMAPHOTOS / Garden lizard male in breeding colours, Nepal {Calotes versicolor}

Ch'ien Lee / Sri Lanka Agama (Calotes liolepis), Kandy, Sri Lanka

Sebastian Kennerknecht / Changeable Lizard (Calotes versicolor) male in breeding coloration, Diyasaru Park, Colombo, Sri Lanka

Sebastian Kennerknecht / Changeable Lizard (Calotes versicolor) male, Diyasaru Park, Colombo, Sri Lanka

Bernard Castelein / Garden lizard {Calotes versicolor} climbing bush, Ranthambore NP, Rajasthan, India

Joel Sartore / Photo Ark / Goetz forest lizard (Calotes goetzi) portrait, Angkor Centre for Conservation of Biodiversity. Captive, occurs in China and Southeast Asia.

Joel Sartore / Photo Ark / Goetz forest lizard (Calotes goetzi) portrait, Angkor Centre for Conservation of Biodiversity. Captive, occurs in China and Southeast Asia.

Robin Chittenden / Green forest lizard (Calotes calotes) on tree trunk, Sri Lanka.

Robin Chittenden / Green forest lizard (Calotes calotes) portrait, Sri Lanka.

Robin Chittenden / Green forest lizard (Calotes calotes) Sri Lanka.

Robert Valentic / Garden lizard (Calotes versicolor) on branch in coastal resort on Phuket Island, Thailand. March, urban wildlife.

Robert Valentic / Emma gray's forest dragon (Calotes emma emma) Phuket Island, Thailand, Controlled conditions.