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Original description : A size comparison of four different snakes; comparing large individuals of the extant green anaconda (Eunectes murinus) and reticulated python (Malayopython reticulatus) to total length estimates of the extinct Gigantophis and Titanoboa. • The green anaconda is the largest (most massive) extant snake.
Northern green anaconda (asserted distinct in 2024) "Eunectes akayima" (asserted distinct in 2024) Boidae: Similar in maximum weight to that listed above for the southern green anaconda: Similar in maximum length to that listed above for the southern green anaconda Reportedly at least 6.3 m (21 ft), from a newspaper report not firmly verified ...
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. [11] 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 ...
Images show 'magnificent' size of northern green anaconda. A close-up of the newly discovered northern green anaconda, found in the Amazon's Orinoco basin.
A video shared online shows the scale of these 20-foot-long (6.1-meter-long) reptiles as one of the researchers, Dutch biologist Freek Vonk, swims alongside a giant 200-kilo (441-pound) specimen.
The new species, described in the journal Diversity, diverged from the previously known southern green anaconda about 10 million years ago, differing genetically from it by 5.5 per cent.
Sexual size dimorphism in Eunectes is the opposite of most other vertebrates. Females are larger than males in most snakes, and green anacondas have one of the most extreme size differences, where females average roughly 32 kg (70 lb) and males average only around 7 kg (15 lb).
By comparison, the largest extant snakes are the reticulated python, measuring about 6.95 m (22.8 ft) long, [7] and the green anaconda, which measures about 5.21 m (17.1 ft) long and is considered the heaviest snake on Earth at 97.5 kg (215 lb).