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[22] [23] The green anaconda is the most well-studied species of Eunectes in terms of their mating system, followed by the yellow anaconda ; unfortunately E. deschauenseei and E. beniensis are much less common, making the specific details of their mating systems less well understood. [22]
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 northern green anaconda (Eunectes akayima) is a disputed boa species found in northern South America and the Caribbean island of Trinidad. It is closely related to Eunectes murinus , the (southern) green anaconda, from which it was claimed to be genetically distinct in 2024.
The IUCN has classified each of these species into one of three conservation statuses: vulnerable VU, endangered EN, and critically endangered CR.
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 ...
Endangered (EN) – very high risk of extinction in the wild, meets any of criteria A to E for Endangered. Vulnerable (VU) – meets one of the 5 Red List criteria and thus considered to be at high risk of unnatural (human-caused) extinction without further human intervention. Near Threatened (NT) – close to being endangered in the near future.
The Green anaconda is the most massive living snake. The most massive ... (Rafetus swinhoei), a critically endangered species of softshell turtle, is sometimes ...
For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered reptiles are listed ...