Limnonectes blythii
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~60%
Blyth's river frog (Limnonectes blythii), also known as Blyth's frog, giant Asian river frog or (ambiguously) giant frog, is a species of frog in the family Dicroglossidae found from Myanmar through western Thailand and the Malay Peninsula (Malaysia, Singapore) to Sumatra and Borneo (Indonesia). Earlier records from Laos and Vietnam are considered misidentifications.
Blyth's river frog is a large frog. Females grow to a snout–vent length of 90–260 mm (3.5–10.2 in) and males to 85–125 mm (3.3–4.9 in). Large adults can weigh more than 1 kg (2.2 lb). The skin is smooth on the dorsum, with or without scattered tubercles or longitudinal skin folds. They are brownish, grey, or yellowish above and white or yellowish below. They may or may not have a vertebral stripe on their backs.
These frogs inhabit streams with gravel and rocks in primary and secondary evergreen forest. Males build a nesting hollow in a sandy stream bed area, and the tadpoles develop in streams. They can also be found far away from streams.
The major threat to this species is collection for food, both for local consumption and for trade. It is also locally impacted... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand | |
| 3 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 4 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 2 | Singapore | 🇸🇬 Singapore |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Night Safari | 🇸🇬 Singapore | |
| 2 | Singapore Zoo | 🇸🇬 Singapore | |
| 3 | River Wonders | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Blyth's River Frog sighting in Kaeng Krachan National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 21 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Blyth's River Frog in Kaeng Krachan National Park on a given day, against under 5% in February–March and August–October, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Blyth's River Frog sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Blyth's River Frog sightings, Kaeng Krachan National Park ranks 4th at about 10%. The best odds are in Khao Luang National Park (Thailand, about 30%), Khao Sok National Park (Thailand, about 20%) and Gunung Leuser National Park (Indonesia, about 10%).
GBIF citizen-science records
It is estimated from how often the Blyth's River Frog is recorded against all the amphibians logged in Kaeng Krachan National Park (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.
