Theloderma corticale
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~60% in a week ~90%
Theloderma corticale (common names: mossy frog, Vietnamese mossy frog, Tonkin bug-eyed frog, moss bug-eyed frog, and [for the formerly recognized Theloderma kwangsiense] Kwangsi warty treefrog) is a species of frog in the family Rhacophoridae. It is now known to be found in northern Vietnam, south–central Laos, and southern China (Guangdong, Guangxi, Hainan, Yunnan).
The common name "mossy frog" arises from the fact that its skin is a mottled green and brown that resembles moss growing on rock, and provides an effective form of camouflage. They have large sticky pads on their toes and a soft underbelly. They measure about 61 mm (2.4 in) in snout–vent length.
The females will grow larger than the males and can reach sizes of 8–9 cm (3.1–3.5 in). This species will curl into a ball when frightened, and play dead. Its natural habitats are primarily evergreen rainforests and subtropical forest where they have been found inside pools in hollowed-out logs, placed by the local villagers. The Vietnamese mossy frog is semi-aquatic and found in caves and steep rocky cliffs. This amphibian has been observed between 470 and 1500 meters above sea level. Breeding takes... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | National Zoological Park | 🇺🇸 United States | |
| 2 | Denver Zoo | 🇺🇸 United States | |
| 3 | Lisbon Oceanarium | 🇵🇹 Portugal | |
| 4 | Ostrava Zoo | 🇨🇿 Czechia | |
| 5 | Taipei Zoo | 🇹🇼 Taiwan | |
| 6 | Bronx Zoo | 🇺🇸 United States | |
| 7 | Toledo Zoo | 🇺🇸 United States | |
| 8 | Detroit Zoo | 🇺🇸 United States | |
| 9 | Oklahoma City Zoo and Botanical Garden | 🇺🇸 United States | |
| 10 | Twycross Zoo | 🇬🇧 United Kingdom | |
| 11 | Dickerson Park Zoo | 🇺🇸 United States | |
| 12 | Fort Worth Zoo | 🇺🇸 United States | |
| 13 | Memphis Zoo | 🇺🇸 United States | |
| 14 | Montgomery Zoo | 🇺🇸 United States | |
| 15 | Wilhelma | 🇩🇪 Germany | |
| 16 | Pittsburgh Zoo & Aquarium | 🇺🇸 United States | |
| 17 | Riverbanks Zoo | 🇺🇸 United States | |
| 18 | Biotropica | 🇫🇷 France | |
| 19 | The Abilene Zoo | 🇺🇸 United States | |
| 20 | Chattanooga Zoo at Warner Park | 🇺🇸 United States | |
| 21 | Aquarium of the Pacific | 🇺🇸 United States | |
| 22 | Freiland-Aquarium und -Terrarium Stein | 🇩🇪 Germany | |
| 23 | Birch Aquarium | 🇺🇸 United States | |
| 24 | Sea Life | 🇩🇪 Germany | |
| 25 | Aquarium de Paris | 🇫🇷 France | |
| 26 | Carolina Raptor Center | 🇺🇸 United States | |
| 27 | Glen Echo Park Aquarium | 🇺🇸 United States | |
| 28 | Free Rein Foundation | 🇺🇸 United States | |
| 29 | Indraloka Animal Sanctuary | 🇺🇸 United States | |
| 30 | Kung Fu Corals | 🇺🇸 United States | |
| 31 | My Nature Lab | 🇺🇸 United States | |
| 32 | Reptilia | 🇨🇦 Canada | |
| 33 | Riverdale Farm | 🇨🇦 Canada | |
| 34 | Sea Life Arizona | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Vietnamese Mossy Frog sighting in Cuc Phuong National Park on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 8th most-seen of the 8 amphibians we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
April and October
In those months about 50% of wildlife watchers report a Vietnamese Mossy Frog in Cuc Phuong National Park on a given day, against under 5% in May–August and November–February, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Vietnamese Mossy Frog sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Cuc Phuong National Park, in our data
Cuc Phuong National Park is the only park on Wallace's Line with enough records to rate Vietnamese Mossy Frog sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Vietnamese Mossy Frog is recorded against all the amphibians logged in Cuc Phuong National Park (14 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.
