Corallus caninus
Silhouette: T. Michael Keesey (from a photo by Maximilian Paradiz) · PhyloPic
In 3 days ~70% in a week ~90%
The emerald tree boa (Corallus caninus) is a boa species found in the rainforests of South America. Since 2009, the species Corallus batesii has been distinguished from the emerald tree boa. Like all other boas, it is nonvenomous. Trade of the species is controlled internationally under CITES Appendix II.
Adults grow to about 6 feet (1.8 m) in length. They have highly developed front teeth that are likely proportionately larger than those of any other non-venomous snake. The color pattern typically consists of an emerald green ground color with a white irregular interrupted zigzag stripe or so-called 'lightning bolts' down the back and a yellow belly. The bright coloration and markings are very distinctive among South American snakes. Juveniles vary in color between various shades of light and dark orange or brick-red before ontogenetic coloration sets in and the animals turn emerald green (after 9–12 months of age). This also occurs in green tree python (Morelia viridis), a python species in which hatchlings and juveniles may also be canary yellow or brick-red. As opposed to popular belief, yellow juveniles (as in the green tree python) do not occur in the emerald... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brownsberg Nature Park | 🇸🇷 Suriname |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States | |
| 2 | National Zoological Park | 🇺🇸 United States | |
| 3 | Shedd Aquarium | 🇺🇸 United States | |
| 4 | ZooParc de Beauval | 🇫🇷 France | |
| 5 | Skansen | 🇸🇪 Sweden | |
| 6 | Cleveland Metroparks Zoo | 🇺🇸 United States | |
| 7 | Cincinnati Zoo and Botanical Garden | 🇺🇸 United States | |
| 8 | Paris Zoological Park | 🇫🇷 France | |
| 9 | Greensboro Science Center | 🇺🇸 United States | |
| 10 | Zoo Miami | 🇺🇸 United States | |
| 11 | Toronto Zoo | 🇨🇦 Canada | |
| 12 | Bronx Zoo | 🇺🇸 United States | |
| 13 | Parc zoologique de Montpellier | 🇫🇷 France | |
| 14 | Omaha’s Henry Doorly Zoo and Aquarium | 🇺🇸 United States | |
| 15 | Chester Zoo | 🇬🇧 United Kingdom | |
| 16 | Lake Tobias Wildlife Park | 🇺🇸 United States | |
| 17 | Banham Zoo | 🇬🇧 United Kingdom | |
| 18 | Toledo Zoo | 🇺🇸 United States | |
| 19 | Detroit Zoo | 🇺🇸 United States | |
| 20 | Cape May County Park & Zoo | 🇺🇸 United States | |
| 21 | São Paulo Zoo | 🇧🇷 Brazil | |
| 22 | Central Florida Zoo and Botanical Gardens | 🇺🇸 United States | |
| 23 | Birmingham Zoo | 🇺🇸 United States | |
| 24 | Africam Safari | 🇲🇽 Mexico | |
| 25 | Louisville Zoo | 🇺🇸 United States | |
| 26 | Nanning Zoo | 🇨🇳 China | |
| 27 | Oklahoma City Zoo and Botanical Garden | 🇺🇸 United States | |
| 28 | Saint Louis Zoo | 🇺🇸 United States | |
| 29 | Terra Natura Benidorm | 🇪🇸 Spain | |
| 30 | Woodland Park Zoo | 🇺🇸 United States | |
| 31 | San Francisco Zoo | 🇺🇸 United States | |
| 32 | Moody Gardens | 🇺🇸 United States | |
| 33 | Brevard Zoo | 🇺🇸 United States | |
| 34 | Franklin Park Zoo | 🇺🇸 United States | |
| 35 | Night Safari | 🇸🇬 Singapore | |
| 36 | Memphis Zoo | 🇺🇸 United States | |
| 37 | Zoológico Benito Juárez | 🇲🇽 Mexico | |
| 38 | Singapore Zoo | 🇸🇬 Singapore | |
| 39 | Virginia Zoological Park | 🇺🇸 United States | |
| 40 | Wilhelma | 🇩🇪 Germany | |
| 41 | Houston Zoo | 🇺🇸 United States | |
| 42 | Melbourne Zoo | 🇦🇺 Australia | |
| 43 | ABQ BioPark Zoo | 🇺🇸 United States | |
| 44 | Simba Safari | 🇧🇷 Brazil | |
| 45 | Cameron Park Zoo | 🇺🇸 United States | |
| 46 | Philadelphia Zoo | 🇺🇸 United States | |
| 47 | Potter Park Zoo | 🇺🇸 United States | |
| 48 | Mesker Park Zoo and Botanic Garden | 🇺🇸 United States | |
| 49 | Chapultepec Zoo | 🇲🇽 Mexico | |
| 50 | Zoo Atlanta | 🇺🇸 United States |
No species of the same family or order lives in Brownsberg Nature Park, so these are its closest relatives here: other reptiles.
Possible
About 30% of wildlife watchers report an Emerald Tree Boa sighting in Brownsberg Nature Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 22 reptiles we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 60% of wildlife watchers report an Emerald Tree Boa in Brownsberg Nature Park on a given day, against under 5% in January and March, the lowest months. That is one of Brownsberg Nature Park's wettest months, with about 490 mm of rain against 55 mm in October. June and August–September have too few records to rate.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Emerald Tree Boa sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Brownsberg Nature Park, in our data
Brownsberg Nature Park is the only park on Wallace's Line with enough records to rate Emerald Tree Boa sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Emerald Tree Boa is recorded against all the reptiles logged in Brownsberg Nature Park (6 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
