Oophaga granulifera
Silhouette: Steven Traver · PhyloPic
In 3 days ~50% in a week ~80%
The granular poison frog or granular poison arrow frog (Oophaga granulifera) is a species of frog in the family Dendrobatidae, found in Costa Rica and Panama. Originally described as Dendrobates granuliferus, it was moved to Oophaga in 1994. Its natural habitats are tropical humid lowland forests; it is threatened by habitat loss.
The granular poison frog is a small frog with slender limbs growing to about 20 mm (0.8 in). Its skin is finely granulated and its colour is typically bright orange head, body and upper arms and bluish-green underparts, legs and lower arms. In the vicinity of Quepos, Costa Rica, there is a colour morph in which the orange colour is replaced with olive green.
The granular poison frog is native to Costa Rica and Panama. Its range extends from southwestern Costa Rica through the adjacent area of south-western Panama at heights of up to 100 m (328 ft) above sea level. It also occurs in Piedras Blancas National Park in south-eastern Costa Rica. It inhabits the leaf litter of the floor of humid low altitude forests.
The granular poison frog is a diurnal terrestrial species. Breeding takes place in... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Corcovado National Park | 🇨🇷 Costa Rica | |
| 2 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 3 | Marino Ballena National Park | 🇨🇷 Costa Rica |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque Zoológico Nacional Simón Bolívar | 🇨🇷 Costa Rica | |
| 2 | Monteverde Theme Park | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Granular Poison Frog sighting in Piedras Blancas National Park on a given day, based on 77 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 33 amphibians we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a Granular Poison Frog in Piedras Blancas National Park on a given day, against about 10% in April, the lowest month.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Granular Poison Frog sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
2nd of 3
Of the 3 parks where we can rate Granular Poison Frog sightings, Piedras Blancas National Park ranks 2nd at about 20%. The best odds are in Corcovado National Park (Costa Rica, about 30%).
Same family: Dendrobatidae
The closest relatives of the Granular Poison Frog that you can see in Piedras Blancas National Park (family Dendrobatidae, Poison Dart Frogs) are Rainforest Rocket Frog (about 30%), Green and Black Dart-poison Frog (about 30%) and Golfo Dulce Poison-Dart Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Granular Poison Frog is recorded against all the amphibians logged in Piedras Blancas National Park (77 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.
