Rhinella horribilis
Silhouette: Dennis C. Murphy, after http://bit.ly/4q6IESe · PhyloPic
In 3 days ~30% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Giant Marine Toad sighting in Tapantí-Macizo de la Muerte National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 17 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Giant Marine Toad in Tapantí-Macizo de la Muerte National Park on a given day, against under 5% in November and December, the lowest months. That is one of Tapantí-Macizo de la Muerte National Park's wettest months, with about 570 mm of rain against 160 mm in February.
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.
39th of 40
Of the 40 parks where we can rate Giant Marine Toad sightings, Tapantí-Macizo de la Muerte National Park ranks 39th at about 10%. 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 family: Bufonidae
The closest relatives of the Giant Marine Toad that you can see in Tapantí-Macizo de la Muerte National Park (family Bufonidae, True Toads) are Wet Forest Toad (about 10%), Leaf Litter Toad (about 10%) and Green Climbing Toad (about 10%), 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 Tapantí-Macizo de la Muerte National Park (17 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.
