There is only one documented predator of emerald tree boas are Guianan crested eagles. However, many other birds of prey, such as harpy eagles, are certainly capable of killing and eating the boas. Additionally, large cats, such as jaguars, probably eat emerald tree boas when they find them.
The primary ways that emerald tree boas protect themselves from predators include their incredible camouflage, arboreal habits and nocturnal activity cycle. Emerald tree boas are deep green in color, but they also feature assorted white, yellow, gray and blue markings. The green coloration helps the snakes blend in with the green foliage of the rain forest canopy, while the colored markings help to break up the snakes’ outline. Spending most of the day sleeping while curled around a branch, emerald tree boas awake after dark to hunt. If attacked by a predator, emerald tree boas cling tenaciously to their branch and strike vigorously.
Emerald tree boas have adequate vision, but the primary way they detect predators is through scent. Using their forked tongues, emerald tree boas can smell predators even before they are close enough to be seen. Emerald tree boas also use their excellent sense of smell to locate, track and catch prey, such as rodents and frogs.