An Emerald Tree Boa (Corallus batesii) coiled high above in the Amazon basin in Peru
This snake was about twenty feet off the ground. It stands out against the canopy leaves in a flash photo because of the way the snake's body reflects the flash, but in person it was much harder to distinguish.
Emerald Tree Boas are strikingly beautiful arboreal snakes from South America. This group of boas was split in 2009 into Guyana Shield Emerald Tree Boas (Corallus caninus) and Amazon Basin Emerald Tree Boas (Corallus batesii). Older references use the name Corallus caninus for all of them.