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The largest lamprophids Cape file snake (Heterolepsis capensis) is a medium to large snake. With an average total length (including tail) of about 120 cm (3 ft 11 in), specimens of 165 cm (5 ft 5 in) total length have been recorded. It has a very flat head, and its body is strikingly triangular in cross-section.
The green anaconda (Eunectes murinus), also known as the giant anaconda, emerald anaconda, common anaconda, common water boa, or southern green anaconda, is a semi-aquatic boa species found in South America and the Caribbean island of Trinidad. It is the largest, heaviest, and second longest snake in the world, after the reticulated python.
• The green anaconda is the largest (most massive) extant snake. The silhouette is scaled to 5.21 metres (17.1 ft) which was the longest measured and published in a study by Jesús Antonio Rivas that measured hundreds of anacondas. [2] There are reports of longer anacondas, but these reports have been questioned. [3] [4] [5]
A new snake species, the northern green anaconda, sits on a riverbank in the Amazon's Orinoco basin. “The size of these magnificent creatures was incredible," Fry said in a news release earlier ...
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.
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.
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).
It is one of the heaviest and longest snakes in the world, with one specimen reported by a newspaper to have been 6.3 metres (21 ft) long. Like all boas, it is a non-venomous constrictor . E. akayima is estimated to have diverged from its closest relative between 5 and 20 million years ago, originally separated by the Vaupés Arch .