Rhinella horribilis
Silhouette: Dennis C. Murphy, after http://bit.ly/4q6IESe · PhyloPic
In 3 days ~60% in a week ~90%
Rhinella horribilis is the scientific name used for populations of the cane toad or giant toad located in Mesoamerica and north-western South America when they are considered to be a separate species from Rhinella marina, a name which is then mostly restricted to Amazon basin populations. R. horribilis was originally described from Mexico as Bufo horribilis before later being considered a synonym of Bufo marina and later Rhinella marina. The specific epithet horribilis has now been revived after a 2016 study argued that these populations make up two separate species. Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Panama City | 🇵🇦 Panama | |
| 2 | San Pedro Sula | 🇭🇳 Honduras | |
| 3 | San José | 🇨🇷 Costa Rica | |
| 4 | Barranquilla | 🇨🇴 Colombia | |
| 5 | Cali | 🇨🇴 Colombia | |
| 6 | Tegucigalpa | 🇭🇳 Honduras | |
| 7 | Guatemala City | 🇬🇹 Guatemala | |
| 8 | Medellín | 🇨🇴 Colombia | |
| 9 | San Salvador | 🇸🇻 El Salvador | |
| 10 | Monterrey | 🇲🇽 México |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Milwaukee County Zoo | 🇺🇸 United States | |
| 2 | Parque Municipal Summit | 🇵🇦 Panama | |
| 3 | La Paz Waterfall Gardens | 🇨🇷 Costa Rica | |
| 4 | Ménagerie du Jardin des Plantes | 🇫🇷 France | |
| 5 | Vancouver Aquarium | 🇨🇦 Canada | |
| 6 | Gran Acuario de Mazatlán "Mar de Cortés" | 🇲🇽 Mexico | |
| 7 | Arenal Eco Zoo | 🇨🇷 Costa Rica | |
| 8 | Monteverde Theme Park | 🇨🇷 Costa Rica |
Possible
About 30% of wildlife watchers report a Giant Marine Toad sighting in Montes Azules Biosphere Reserve on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
April, June–July, September and December
In those months about 40% of wildlife watchers report a Giant Marine Toad in Montes Azules Biosphere Reserve on a given day, against under 5% in January–March and August, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Giant Marine Toad sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
25th of 40
Of the 40 parks where we can rate Giant Marine Toad sightings, Montes Azules Biosphere Reserve ranks 25th at about 30%. The best odds are in Piedras Blancas National Park (Costa Rica, about 60%), Tayrona National Natural Park (Colombia, about 60%) and Ostional Wildlife Refuge (Costa Rica, about 60%). All parks ranked.
Same order: Anura
The closest relatives of the Giant Marine Toad that you can see in Montes Azules Biosphere Reserve (order Anura, Frogs and Toads) are Mexican Smilisca (about 30%) and Stauffer's Tree Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Giant Marine Toad is recorded against all the amphibians logged in Montes Azules Biosphere Reserve (8 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.
