Amolops marmoratus
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~80% in a week >90%
Amolops marmoratus is a species of ranid frog found in Asia. Its common names include marbled sucker frog, marbled cascade frog, Pegu torrent frog, and many others. The taxonomic status of many populations formerly assigned to this species is uncertain.
Amolops marmoratus shows a pronounced sexual dimorphism in size: males grow to snout-vent length of 38–48 mm (1.5–1.9 in) and females to 70–79 mm (2.8–3.1 in). It is a relatively small species among Amolops. Amolops marmoratus is only known with certainty from Myanmar and likely from northern Thailand, though it may occur more widely. For example, International Union for Conservation of Nature (IUCN), using a less stringent delineation of the species, reported the species also from Bangladesh, Bhutan, China, India, and Nepal. While IUCN in its assessment in 2004 considered Amolops marmoratus to be of "Least Concern" in view of its wide distribution and presumed large population, recognizing higher biodiversity within the species warrants further assessment of its conservation status.
As is typical for the genus Amolops, Amolops marmoratus lives near fast-flowing mountain streams. ��2... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
Likely
About 40% of wildlife watchers report a Marbled Cascade Frog sighting in Doi Inthanon National Park on a given day, based on 80 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the most-seen of the 17 amphibians we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July and September
In those months about 60% of wildlife watchers report a Marbled Cascade Frog in Doi Inthanon National Park on a given day, against under 5% in January, the lowest month. Those are among Doi Inthanon National Park's wettest months, with about 330 mm of rain a month against 20 mm in February.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Marbled Cascade Frog sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Doi Inthanon National Park, in our data
Doi Inthanon National Park is the only park on Wallace's Line with enough records to rate Marbled Cascade Frog sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Marbled Cascade Frog is recorded against all the amphibians logged in Doi Inthanon National Park (80 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.
