Anaconda
Eunectes murinus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyBoidae (Boas)
- GenusEunectes (Anacondas)
- SpeciesEunectes murinus (Anaconda)
The green anaconda (Eunectes murinus), common anaconda, common water boa, akayima, or sucuri, is a boa species found in South America. It is one of the longest and heaviest known extant snake species. Like all boas, it is a non-venomous constrictor. Green anacondas generally have a life expectancy of 10 years in the wild, although some specimens live longer when they are taken care of in captivity. Green anacondas live in tropical rainforests and tend to prefer shallow, slow-moving waters, such as streams, rivers and flooded grasslands. They spend most of their time in the water but are also found on land in thick vegetation. Wikipedia →
30–40% of wildlife watchers report a Anaconda sighting in Yasuní National Park, based on 55 days of visitor records from GBIF citizen-science data.
Closest Relatives at Yasuní National Park
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 4 | Tambopata National Reserve | 🇵🇪 Peru | |
| 5 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 6 | Emas National Park | 🇧🇷 Brazil | |
| 7 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 8 | Cordillera Azul National Park | 🇵🇪 Peru | |
| 9 | Manu National Park | 🇵🇪 Peru |
Quick answers
What are the chances of seeing a Anaconda in Yasuní National Park?
About 30% of wildlife watchers report a Anaconda sighting in Yasuní National Park, based on 55 days of visitor records from GBIF citizen-science data.
When is the best time to see Anaconda in Yasuní National Park?
November has the highest sighting rate for Anaconda in Yasuní National Park in our monthly data.