Language English Tropical Rainforest Emerald tree boa Photo: Biodôme de Montréal Photo: Biodôme OngletsDescriptionDistinguishing features The adult emerald tree boa is very bright green with white markings above, and yellow or cream below. The young are reddish-brown until 8 months of age. This snake has large canine teeth. Reproduction Emerald tree boas are ovoviviparous (the eggs hatch internally). To mate, the male wraps his tail around the female's cloaca. Copulation may last from a few minutes to 2 hours. Gestation is 6 months. The female produces 2 to 15 young at a time. Diet The emerald boa hunts by night. It then slides down the trees to a low branch. It hangs there, head downward, taking an S-posture. It waits there, perfectly still, for a small mammal (rodent or marsupial) to pass. The boa then springs down to grab its prey. Thermoreceptors on either side of the boa’s jaw detect its prey’s body heat.. The emerald tree boa also eats on nocturnal lizards (geckos). Predators Because of their camouflage, habitat and nocturnal habits, they have few predators, other than raptors. Habitat Emerald tree boas live in the tropical forests of South America, along the Amazon and in the lowlands of the neighbouring forest. Essentially an arboreal species, they rarely venture down to the ground. They are found at heights of a few metres to 30 or 40 metres, in the canopy. Ecology, behaviour When thirsty, emerald tree boas drink the droplets of water that accumulate on their bodies, in addition to the water they find in their habitat. They use the heat-sensitive pits in the scales of their upper and lower lips to detect their prey at night. These snakes prefer temperatures of 28°C during the day and 21°C at night. French nameBoa émeraude Scientific nameCorallus caninusPhylumChordataClassReptiliaOrderSquamataFamilyBoidaeSizeAverage length: 1.59 mWeightAverage: 1.35 kgLife spanIn captivity: 15 to 20 yearsStatusProtected species (CITES,appendix II). Non evaluated (IUCN).