Reports without physical proof are considered dubious if from non-scientists, as such individuals may at worst be more interested in promoting themselves or telling a good tale, or at the least may not be sufficiently trained in proper measurement methods. Skins can stretch substantially, increasing the snake's size by more than 50% if stretched during the tanning process. Transporting very large specimens to museums, especially before substantial decay, is difficult (though this has not prevented the return of much larger and more cumbersome crocodilian specimens). The remote location of the snake's habitat has historically made locating, capturing, and returning specimens difficult.
Difficulties in determining maximum size The digestion process takes many days to complete and during this time the anaconda behaves very sluggishly. The windpipe in its mouth allows it to breathe while swallowing its prey. This allows it to swallow prey larger than the size of its head. The anaconda’s jaw bones splay open at the front because they are loosely connected. The eyes are set high on the head, allowing the snake to see out of the water while swimming without exposing its body. The head is narrow compared to the body, usually with distinctive orange-yellow striping on either side. The color pattern consists of an olive green background overlaid with black blotches along the length of the body. Jesús Antonio Rivas, who had examined more than a thousand anacondas, was a female 5.21 m (17 ft 1 in) long and weighing 97.5 kg (214 lb 15 oz). The longest and heaviest verified specimen encountered by Dr. A US$50,000 cash reward is on offer for anyone who can catch an anaconda 30 ft (9.14 m) or longer. Reports of anacondas 11–12 m (35–40 ft) or even longer also exist, but such claims must be regarded with caution, as no specimens of such lengths have ever been deposited in a museum and hard evidence is lacking. Although it is slightly shorter than the reticulated python, it is far bulkier the bulk of a 4.5-metre (14 ft 9 in) green anaconda is comparable to that of a 7.4-metre (24 ft 3 in) reticulated python. It is the largest snake native to the Americas. Weights are less well studied, though reportedly range from 30 to 70 kg (66 to 154 lb) in a typical adult. More typical mature specimens reportedly can range up to 5 m (16 ft 5 in), with adult females, with a mean length of about 4.6 m (15 ft 1 in), being generally much larger than the males, which average around 3 m (9 ft 10 in). Due to their size, green anacondas are one of the few snakes capable of consuming a human, however this is extremely rare.Īt the Smithsonian's National Zoo, the green anaconda eats rats and rabbits about once a month.The green anaconda is the world's heaviest and one of the world's longest snakes, reaching a length of up to 5.21 m (17 ft 1 in) long. Females will sometimes cannibalize males, especially during breeding season. Adults are able to consume much larger animals, including deer, capybara, caimans and large birds. Juveniles tend to eat fish, birds and small mammals. They are opportunistic apex predators and eat a wide variety of prey. Green anacondas have slow metabolisms, and with the exception of breeding females, only need to eat once every few weeks. Like most snakes, they can detach their jaw to swallow prey much larger then themselves, though they are careful to weigh the risk of injury with large prey. They use their strong jaws to capture their prey, then use their muscular bodies to suffocate the prey before swallowing it whole. As members of the boa family, green anacondas are nonvenomous constrictors. Like all snakes, green anacondas are carnivores.
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