Highly aquatic, they inhabit rivers, swamps, flooded grasslands and the fringes of cattle ranches. Green Anacondas are found in Trinidad, Venezuela, Columbia, Brazil, northern Bolivia, northeastern Peru, Guyana and French Guiana. In the course of tagging over 500 Anacondas, the largest I and co-workers encountered was just over 17 feet long and weighed 215 pounds. There is one fairly reliable record of a 33-foot-long specimen and an unverified report (eastern Columbia, 1944) of 37.5 foot individual. It vies with the Reticulated Python for the title of longest serpent. The Green Anaconda may exceed 400 pounds in weight, and is the world’s heaviest snake. Please see the articles linked below for greater detail. I’ve posted several articles on Green Anaconda natural history and field research, and so will summarize here. Reaching nearly 6 feet in length, this often vile-tempered beast is a handful, and may change your mind about its larger cousins! Natural History Actually, I suggest “cutting your teeth” on an adult Florida Green Watersnake, Nerodia floridana. It is not an animal to be taken lightly, but makes a more reasonable pet than the Green Anaconda. If you really are set on owning a large, usually aggressive aquatic snake, you might consider the Yellow Anaconda, Eunectes notaeus. Today I’ll cover the key points to consider before making a decision on these fascinating, but dangerous, behemoths. For those with the required space, training and finances, they are, I know, hard to resist. However, Anacondas do appear in the trade, and have been successfully kept and bred. Capable of killing an adult, and far too large to be accommodated in most homes, they are obviously not suitable choices for most people. So I’m somewhat torn when asked to comment on Anacondas in private collections. I consider myself very fortunate, and realize that the childhood dream I was able to live is not available to most people. For a snake enthusiast such as I, not much can top the thrill of working with Green Anacondas ( Eunectes murinus), in the wild and breeding them in captivity.