Quick answer
Green Anacondas (Eunectes murinus) are reptiles found across South America. The heaviest snake in the world. Adults typically weigh Up to 70 kg (150 lb) or more, reach speeds of up to 8 km/h (5 mph), and live About 10 years in the wild. They feed on carnivore and are listed as Least Concern on the IUCN Red List. Swamps, marshes, and slow rivers of the Amazon and Orinoco basins in tropical South America.
Key takeaway
Green Anacondas (Eunectes murinus) are reptiles found across South America. The heaviest snake in the world. Adults typically weigh Up to 70 kg (150 lb) or more, reach speeds of up to 8 km/h (5 mph), and live About 10 years in the wild. They feed on carnivore and are listed as Least Concern on the IUCN Red List. Swamps, marshes, and slow rivers of the Amazon and Orinoco basins in tropical South America.
Green Anaconda overview
Green Anaconda (Eunectes murinus) is a reptile listed here as Least Concern. Typical weight Up to 70 kg (150 lb) or more; lifespan around About 10 years in the wild.
Green Anaconda ecology
Diet: Carnivore. Habitat: Swamps, marshes, and slow tropical rivers. Movement and social systems reflect those pressures across the native range.
Green Anacondas and people
Learn before you travel or keep related pets. Wild green anacondas are not toys; captive care needs species-specific husbandry.
Status and further reading
Conservation label in our guides: Least Concern. See the full Green Anaconda profile for taxonomy, FAQs, and related topic guides on this site.
Range and habitat
Green Anacondas inhabit Swamps, marshes, and slow rivers of the Amazon and Orinoco basins in tropical South America. Their preferred habitat includes swamps, marshes, and slow tropical rivers, where they find food, shelter, and breeding sites. Population density varies with prey availability, water access, and human disturbance. Protected areas and intact corridors remain essential for long-term persistence across So
Physical characteristics and behaviour
Adult green anacondas typically measure about 5 m in length and weigh Up to 70 kg (150 lb) or more. They can sprint at up to 8 km/h (5 mph) when hunting or escaping predators. Green Anacondas are known for the heaviest snake in the world — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Green Anaconda FAQs
What are key facts about green anacondas?
Green Anacondas (Eunectes murinus) are reptiles found across South America. The heaviest snake in the world. Adults typically weigh Up to 70 kg (150 lb) or more, reach speeds of up to 8 km/h (5 mph), and live About 10 years in the wild. They feed on carnivore and are listed as Least Concern on the IUCN Red List. Swamps, marshes, and slow rivers of the Amazon and Orinoco basins in tropical South America.
What is the scientific name of the green anaconda?
Eunectes murinus — used in research and conservation listings for green anacondas.
What do green anacondas eat?
Green Anacondas are described as carnivores, with seasonal and regional variation in Swamps, marshes, and slow tropical rivers.
Where do green anacondas live?
They are associated with Swamps, marshes, and slow tropical rivers. Local presence depends on food, cover, and human land use.
What is the conservation status of green anacondas?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.