Rhinella horribilis
Silhouette: Dennis C. Murphy, after http://bit.ly/4q6IESe · PhyloPic
In 3 days ~40% in a week ~70%
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 20% of wildlife watchers report a Giant Marine Toad sighting in Lago de Yojoa on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 8 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March
In that month about 40% of wildlife watchers report a Giant Marine Toad in Lago de Yojoa on a given day, against under 5% in April and September–January, the lowest months. That is one of Lago de Yojoa's driest months, with about 65 mm of rain against 320 mm in September.
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.
36th of 40
Of the 40 parks where we can rate Giant Marine Toad sightings, Lago de Yojoa ranks 36th at about 20%. 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.
GBIF citizen-science records
It is estimated from how often the Giant Marine Toad is recorded against all the amphibians logged in Lago de Yojoa (16 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.
