Pete Oxford / Emerald Tree Boa (Corallus caninus), Iwokrama Rainforest Reserve, Guyana

Mark Carwardine / Emerald tree boa (Corallus caninus) Captive, from South America

Tim Fitzharris / Emerald Tree Boa (Corallus caninus) in tree, Costa Rica

Tim Fitzharris / Emerald Tree Boa (Corallus caninus) in tree, Costa Rica

Kevin Schafer / Emerald Tree Boa (Corallus caninus) coiled on branch, native to South America

Rod Williams / Emerald tree boa {Corallus canina} male, captive, from South America

Piotr Naskrecki / Emerald Tree Boa (Corallus caninus) coiled in rainforest tree, Guyana

Piotr Naskrecki / Emerald Tree Boa (Corallus caninus) portrait, Guyana

Michael D. Kern / Emerald tree boa {Corallus canina} snake portrait, captive, South America

Pete Oxford / Emerald Tree Boa (Corallus caninus) juvenile, Iwokrama Reserve, Guyana

Pete Oxford / Emerald Tree Boa (Corallus caninus) coiled juvenile, Iwokrama Reserve, Guyana

Pete Oxford / Juvenile Emerald tree boa {Corallus canina}, Iwokrama Reserve, Guyana, South America