The green anaconda is the heaviest snake in the world, as well as one of the longest snakes, reaching a length of 5.21m. Adult specimens reportedly can reach 5m in length on average, with adult females having an average length of about 4.6m, generally being much larger than males, which average around 3m.
m. The weight of these snakes is less documented, although the average adults reportedly weigh between 30 and 70 kg. It is the largest snake native to the Americas. Although it is slightly shorter than the reticulated python, it is much sturdier; The robustness of a 4.5 meter green anaconda is comparable to that of a 7.4 meter reticulated python.
The snake is entirely covered with scales, except in the cloaca region. A particular characteristic of the anacondas and of all the other large constricting snakes is the presence, in the skeleton of the pelvis, to which they are anatomically connected, of spurs, that is, tiny vestigial hind limbs also visible externally.
The coloring of these snakes consists of an olive green background covered with black spots along the entire length of the body. The head is narrow in relation to the body, usually adorned with distinctive yellow-orange stripes on both sides.
The eyes are set high on the head, allowing the snake to see out of the water while swimming without exposing the rest of the body. The minimum size of anacondas to reproduce, in a survey of 780 individuals, is 2.1 m in length, indicating that the maximum size achieved by anacondas following this model would be 5.3 m.
However, most of the anacondas analyzed were captured in llanos, which are more accessible to humans and are home to smaller prey, while rainforests, which are less explored and have more abundant prey, may be home to larger snakes.
The green anaconda is a snake native to South America, and its geographical distribution extends east of the Andes, in countries such as Colombia, Venezuela, Guyana, Ecuador, Peru, Bolivia, Brazil, the island of Trinidad, up to the north.
of Paraguay. Primarily aquatic, these snakes feed on a wide variety of prey - almost anything they can overwhelm, including fish, birds, a variety of mammals, and other reptiles. The usual prey of medium-sized specimens include agouti, paca and monkeys, or the more dangerous caimans, and wild felines such as ocelots or yaguarondi.
Particularly large anacondas can hunt and swallow even large animals such as tapirs, deer, capybara and adult caimans, but such large meals are not eaten regularly.
Some popular legends and presumed local experiences tell of human victims fallen prey to this mammoth reptile; although there is no evidence in this regard, the veracity of these attacks is not to be considered improbable, although attributable only to the larger specimens.