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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).
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.
Scientific name Family Mass Image Length Range map 1 Green anaconda (a.k.a. Southern green anaconda) Eunectes murinus: Boidae: May exceed 227 kg (500 lb), [10] measurement validity questionable 97.5 kg (215 lb), reliable, maximum among 780 specimens caught over a seven-year period 1992–98 [11] Average 30.8 kg (68 lb) among 45 specimens (1992 ...
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.
[6] [7] [17] Notably, the northern green anaconda's smaller range makes it much more vulnerable than its southern neighbor. [ 5 ] As with other anaconda species, main threats include conflict with humans, as well as habitat degradation and fragmentation caused by agriculture, climate change and oil extraction in the region.
The yellow anaconda (Eunectes notaeus), also known as the Paraguayan anaconda, [2] is a boa species endemic to southern South America. It is one of the largest snakes in the world but smaller than its close relative, the green anaconda. No subspecies are currently recognized. Like all boas and pythons, it is non-venomous and kills its prey by ...