Green anacondas are members of the boa family not the python family. They are endangered in some areas but not as many as you would think. It is a carnivorous eater and it on some very rare occasions they have been known to eat a human. The normal lifespan in the wild is about 10 years but in captivity it can be up to 30 or more years. The size of a healthy normal green anaconda as an adult is about 550 lbs. and about 12in. in diameter. The anaconda is the largest snake in the world by far.
Anaconda are the world’s largest snake by weight. They can grow up to 29 feet long and 12 inches in diameter. There are rumors of larger sizes but they have yet to be proven and recorded. The green anaconda has a dark green color as its base color and small black patches on its back. The side of the snake is pretty much the same but the small patches have a yellow center. The females usually like most animals out weigh the male.
The green anaconda is a very social creature. They breed in the rainy season were they can find a wet muddy pit. During the rainy season the female lays down a scent trail for the males to find and follow. They will follow this scent till they meet the female.  In this mating ritual there can be anywhere from 2-12 or more males in one pit with one female. This can last anywhere from 2-4 weeks. The green anaconda gives live birth. This means that a female green anaconda can give birth from anywhere to 4-82 young. The litter will get bigger and bigger each year, so the first time mothers will have approximately 10-30 live young. 
Green anacondas prefer the water but are found in tropical rainforests, savannas, tropical South America, east of the Andes, mainly in the Amazon and Orinoco Basins, grasslands, and scrub forests. The anacondas like the water but also enjoy the land were they can be fond in shallow caves by the waters edge and in trees sun bathing. The anacondas diet consist of the following animals: large rodents such as a capybaras, tapirs, deer, peccaries, fish, turtles, birds, sheep, and aquatic reptiles. There have been some reports of them eating jaguars and the occasional human but that doesn’t happen very often. Anacondas are ambush predators, they will sit in one spot were they have smelt food and wait for it to return. Anacondas have both the ability’s to see and smell their food, that is why they are so accurate. They will sit very still until they are sure that they can catch there prey then they strike. Anacondas are not venomous they are constrictors, Which means that they squeeze their prey to death or till they suffocate. 
- Anaconda by Lori Hamlett. Nashville Zoo
- AquaFacts: Green Anaconda (Eunectes murinus) by the Vancouver Aquarium Marine Science Centre
- Green Anaconda (Eunectes murinus) by Paula Bolyard
- Green Anaconda Eunectes murinus National Geographic Society