thought about before as well. I believe there are several issues involved when looking at the low number of large greens in captivity today. Obviously a large green is a female, and in captivity is either captured in the wild as an adult, or raised from a neonate to a large adult size. When looking at the very low number of large wild caught anacondas, it is not so much their availability, but their survivability in captivity that limits the number of them. Wild adult greens are very prone to stress, and their capture, transport, and confinement, is usually more stressful than most of them can tolerate. I think I could safely say that probably only about one percent of wild caught adult greens survive for extended periods in captivity. And the older and larger they are, the less likely they are to survive. I have kept, and have been around a number of wild caught greens in the late 70’s and 80’s, and none of them ever did well in captivity. I saw one wild caught green in a collection many years ago that was around 20 feet, that was probably half of it’s original body weight. It was fairly obvious that it had probably not fed in well over a year. This is why I am adamantly opposed to the importation of sub-adult and adult greens. As for raising neonates to a large size, this has occurred a few times, but is still fairly rare. This is mostly due to the very limited number of captive born or even wild caught young greens available in the past. And this has a lot to do with demand, as the vast majority of wild caught young greens are quite aggressive. Additionally, as you mentioned, greens grow much more slowly than the larger python species. Female greens grow fairly rapidly for the first 4 or 5 years, and then slow considerably when they get around 12 to 14 feet. Greens of 15 feet or better are growing at a few inches per year at best, slowing even more with increasing age. A green at 20 feet would be of extreme age, not to mention one in the range of 25 feet. This span of time required for them to acquire a great size not only limits the number of really large greens in the wild, but also in captivity.
As far as maturity, the youngest female green to have produced young that I know of was about 4 years old. I think 5 or 6 would be a better bet for breeding age on a female. I have posted a couple of photos below that show two different females I have. The smaller one was 4 and the larger was 8 years of age when these photos were taken. As the dynamics of green reproduction in captivity become more apparent, the more greens you will probably see being raised to larger sizes. But it may be awhile.
Kelly





