Steven David Miller / Herpetologist holding a Carpet or Diamond Python (Morelia spilota), The Australian Reptile Park, Gosford, New South Wales, Australia. April. (Editorial use only)

Roland Seitre / Dawn Fleming, herpetologist with Montserrat mountain chicken frog (Leptodactylus fallax) Durrell Wildlife Park, Jersey. Critically endangered species endemic to Dominica and Montserrat. Part of captiv...

Tim Laman / Foja Mountains RAP Expedition herpetologist Paul Oliver examines a gecko he has just captured, that he believes is a new species.

Tim Laman / Foja Mountains RAP Expedition herpetologist Paul Oliver prepares his frog specimens. Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expeditio...

Tony Phelps / Photographer and herpetologist Tony Phelps holding large Mole Snake (Pseudaspis cana) West Coast National Park, Western Cape, South Africa. model released

Mark Moffett / Tam Dao Newt (Paramesotriton deloustali) researcher Kelly Zamudio teaching local people about her research of the endangered species, Tam Dao National Park, Vietnam

Mark Moffett / Tam Dao Newt (Paramesotriton deloustali) being colected by herpetologist Kelly Zamudio, Tam Dao National Park, Vietnam

Mark Moffett / Tam Dao Newt (Paramesotriton deloustali) being held by herpetologist Kelly Zamudio, Tam Dao National Park, Vietnam

Mark Moffett / Tam Dao Newt (Paramesotriton deloustali) on net of herpetologist Kelly Zamudio, Tam Dao National Park, Vietnam

Mark Moffett / Tree Frog (Hyla sp) new species held by herpetologist Bruno Pimenta, Atlantic Forest ecosystem, Brazil

Mark Moffett / Vine Snake and herpetologist Ted Papenfuss, Tam Dao National Park, Vietnam

Mark Moffett / Vine Snake and herpetologist Ted Papenfuss, Tam Dao National Park, Vietnam

Mark Moffett / Herpetologist Ted Papenfuss tries snake meat at a specialty restaurant, Hanoi, Vietnam

Mark Moffett / Herpetologist Ted Papenfuss collects endemic fish living in sulphurous water near the base of Geno Mountain, Iran

Mark Moffett / Herpetologist Ted Papenfuss catches a lizard, Geno Mountain, Iran

Tony Phelps / Photographer and herpetologist Tony Phelps face to face with Adder {Vipera berus} on Purbeck Heath, Dorset, UK

Tony Phelps / Photographer and herpetologist Tony Phelps face to face with an Adder {Vipera berus} in Dorset, UK

Mark Moffett / Researchers Bob Macey, Ted Papenfuss and Hadi Fahini with fishing poles hunting for specimens in desert, Deh Bala, Iran

Mark Moffett / Russian herpetologist, Natasha Anajeva walking through scrubland, Iran

Mark Moffett / Herpetologist Bob Macy with military guard, Seyed Ali, Iran

Mark Moffett / Asian Pit Viper (Trimeresurus sp) measured by herpetologist Harry Greene, Tam Dao National Park, Vietnam

Mark Moffett / Asian Pit Viper (Trimeresurus sp) caught by herpetologist Harry Greene for study, Tam Dao National Park, Vietnam

Mark Moffett / Colubrid Snake (Boiga sp), a newly described species held by Russian herpetologist Nikolai Orlov, Tam Dao National Park, Vietnam

Mark Moffett / Krait (Bungarus sp) found by russian herpetologist Olig Shumakor and Ted Papenfuss, Tam Dao National Park, Vietnam

Mark Moffett / Russian Herpetologist Nikolai Orlov holding Foam Nest Tree Frog (Polypedates dennysi) newly identified species of Gliding Frog, the largest in the world, Tam Dao National Park, Vietnam

Mark Moffett / Russian herpetologist Nikolai Orlov purchasing a squirrel from villager, Tam Dao National Park, Vietnam

Mark Moffett / Herpetologists donning pantyhose as a deterrent to Leeches, Tam Dao National Park, Vietnam

Mark Moffett / Herpetologist Bob Macy with a new lizard species, Iran

Mark Moffett / Hadi Fahini dashes after lizard with a fishing pole, near Zabul, Iran

Mark Moffett / Herpetologist Soheila Shafii cools off under a waterfall, Seyed Ali, Iran

Emanuele Biggi / Herpetologist releasing European spadefoot toad (Pelobates fuscus insubricus) tadpole back to the wild. A protected species during a five-year long LIFE project to increase the endangered Italian popu...

Tim Laman / Herpetologist Conrad Hoskin holds a brand new species of Leaf-tailed gecko (Saltuarius eximius) shortly after his discovery in the pockets of rainforest in boulder fields, Cape Melville Range, Cape Me...