green anaconda
| Scientific name | Eunectes murinus |
|---|---|
| Descriptor | Linnaeus |
| Year of description | 1758 |
| IUCN category | LC |
| Family | Boidae |
| Genus | Eunectes |
Introduction
Eunectes murinus, commonly known as green anaconda, is a fresh water reptile from the Amérique du Sud.
Who is it?
Morphology
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Female size700 - 1150 cm
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Male size400 - 600 cm
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Weight200 - 250 kg
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Motifponctuations
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Mimicryplants
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Longevity30 year
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Female size700 - 1150 cm
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Male size400 - 600 cm
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Weight200 - 250 kg
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Motifponctuations
-
Mimicryplants
-
Longevity30 year
How to recognize the green anaconda ?
The green anaconda measures around 400 cm. The females are more imposing and some specimens can reach 600 cm. This reptile is tricolore with a predominantly jaune, vert and noir body. The also has noir ponctuations.
Ratio Humain-Animal
Sexual dimorphism
The female is bigger than the male.
Behaviour & Life cycle
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Sociabilitysolitary
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Way of livingnocturnal
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VenomousNo
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Dietpredator
The green anaconda is a reptile solitary naturally found in the vegetation. This species is carnivorous . This reptile lives mainly at night. Usually, it leaves its hiding place and starts to be active once it gets dark.
This species is territorial and does not appreciate the presence of intruders nearby, especially animals with similar behavior. It can also be virulent toward conspecifics. However, the green anaconda has little concern for non-territorial animals. In a constant quest for dominance, the dominant males of this species cannot stand each other. The battle between two individuals can be intense and violent. It will result in the submission and sometimes even death of one of the protagonists.
Reproduction
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Reproductionovovivipare
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PolygamyYes
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Clutch size20 - 40 eggs
The green anaconda is a reptile ovovivipare. In this species, the dominant males are polygamous and reproduce each season with several females.
Risks for humans
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VenomousNo
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BiteYes
This species can attack if it feels threatened. It is important to be particularly vigilant especially during dives or fishing sessions.
Where to find it?
What is its habitat?
Natural environment characteristics
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Temperature15 - 28 °C
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FlowSlow
Biotope presentation
The acidification of water comes from the decomposition of plants. This phenomenon changes the color of the water, which tends to turn brown. In some areas particularly rich in organic matter, the water is so dark that it is called "black water".
The green anaconda is most often found at a depth between 0m and 5m. However, it is not impossible to find this species at other depths. This animal evolves in areas characterized by a strong presence of vegetation (aquatic and marsh plants, decaying organic matter, roots...).
This species lives near large roots, in which it can find refuge in case of danger. This type of habitat is often found not far from the banks.
To go further
To read on the web
Sources & Contributions
Participation & Validation
The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.
Silvia Gomez
Benoit Chartrer
Nans Gourgousse
Translation
Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.
Bibliographic references
Observations on the Natural History of the Green Anaconda (Eunectes murinus, Linnaeus, 1758) in the Venezuelan Llanos: An Ecotourism Perspective - César L. Barrio Amorós - Róger Manrique - ICRF Journal, Reptiles and Amphibians - 2008. Volume 15, numéro 1 (Previous name of the journal was "Iguana: Conservation, Natural History, and Husbandry of Reptiles")
Predatory attacks of green anacondas (Eunectes murinus) on adult human beings - Jesús Antonio Rivas - Herpetological Natural History - 1998. Volume 6
Species of the same biotope
Scientific partners
