Pete Oxford / Emerald Tree Boa (Corallus caninus) showing thermoreceptors between the labial scales, Amazon, Ecuador

Pete Oxford / Emerald Tree Boa (Corallus caninus) adult, Amazon, Ecuador

Gerry Ellis / Emerald Tree Boa (Corallus caninus) hanging on tree branch, Amazon, Peru

Michael & Patricia Fogden / Emerald Tree Boa (Corallus caninus) portrait in rainforest, South America

Pete Oxford / Emerald tree boa juvenile {Corallus canina} coiled round branch Iwokrama reserve, Guyana, South America

Pete Oxford / Close up of Emerald tree boa's mouth and fangs {Corallus canina} Guyana - snake

Pete Oxford / Emerald tree boa coiled round branch {Corallus canina} Amazon rainforest, Ecuador

Pete Oxford / Emerald tree boa (Corallus canina). Ecuador, Amazon, South America

Daniel Heuclin / Emerald tree boa (Corallus caninus) captive, occurs in South America.

MYN / Andrew Snyder / Emerald tree boa (Corallus caninus) tail, Kanuku Mountains, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Emerald tree boa (Corallus caninus) head, Kanuku Mountains, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Emerald tree boa (Corallus caninus) Kanuku Mountains, Guyana. Meetyourneighbours.net project