150 top and left This is the largest male Green Anaconda measured in the wild. This Anaconda (Eunectes murinus) measured 20 feet, 10.5 inches long from nose to tip of tail (6.4 meters). This is a male, females will grow much larger. There are numerous reports of large Anacondas of 10 meters or more, however, so far they are just exaggerated stories and none proven or actually measured. Over the years, many of the Anacondas that the villagers have told me are 10 meters or more, actually turned out to be 5 to 6 meters. So far in the wild, none have been measured over 10 meters and claims of that size are only rumors. If you were in a 3 meter canoe and saw a 6 meter Anaconda, you would think it was over 10 meters! 151 top Notice the multiple teeth all angled back allowing only one direction when holding prey - inside the snake!