Zhangixalus dennysi
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~80% in a week >90%
The Chinese flying frog or Chinese gliding frog (Zhangixalus dennysi) is a species of tree frog in the family Rhacophoridae found in China, Laos, Myanmar, and Vietnam. It is also known as Blanford's whipping frog, large treefrog, and Denny's whipping frog.
It is up to 10 cm (3.9 in) long and has an unusually loud call. This frog has adhesive disks on its toes for climbing and sticking to trees and branches. It also has large amounts of webbed skin between its toes. When it jumps from a branch, the skin stretches, allowing the frog to glide between branches or between trees. The frog can move its feet mid-air to steer.
This frog lives in moist forests in lowlands, mountains, and on hills near streams. This frog tends to live in primary forest. It has been observed between 80 and 1500 meters above sea level. This frog feeds on insects. Females lay eggs in foam nests attached to branches and grasses hanging over water. They create nests by beating a frothy secretion into foam with their hind legs. The tadpoles develop in paddy fields, holes full of water, ponds, and marshes.
The IUCN classifies this species as least concern... Wikipedia →
Recording0:07
China · 2026
© Amaël Borzée · iNaturalist · CC BY-NC 4.0
Recording0:04
2024
© uncontacted tribe · iNaturalist · CC BY-NC 4.0
Recording0:08
China · 2026
© Dallin Kohler · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hangzhou | 🇨🇳 China |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Beijing Wildlife Park | 🇨🇳 China | |
| 2 | Toronto Zoo | 🇨🇦 Canada | |
| 3 | Warsaw Zoo | 🇵🇱 Poland | |
| 4 | Łódź Zoo | 🇵🇱 Poland | |
| 5 | Plock Zoo | 🇵🇱 Poland | |
| 6 | Zamość Zoo | 🇵🇱 Poland | |
| 7 | Leningrad Zoo | 🇷🇺 Russia | |
| 8 | herpetarium warszawskiego ZOO | 🇵🇱 Poland | |
| 9 | akwarium warszawskiego ZOO | 🇵🇱 Poland | |
| 10 | hipopotamiarnia i akwarium morskie warszawskiego ZOO | 🇵🇱 Poland |
Likely
About 40% of wildlife watchers report a Chinese Flying Frog sighting in Cuc Phuong National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 8 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.
February–March and August
In those months about 60% of wildlife watchers report a Chinese Flying Frog in Cuc Phuong National Park on a given day, against under 5% in May and July, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Chinese Flying 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 Cuc Phuong National Park, in our data
Cuc Phuong National Park is the only park on Wallace's Line with enough records to rate Chinese Flying Frog sightings: about 40% of wildlife watchers there report one on a given day.
Same family: Rhacophoridae
The closest relatives of the Chinese Flying Frog that you can see in Cuc Phuong National Park (family Rhacophoridae, Old World Tree Frogs) are Orlov's Treefrog (about 40%), Dotted Bubble-nest Frog (about 30%) and Spot-legged Tree Frog (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chinese Flying Frog is recorded against all the amphibians logged in Cuc Phuong National Park (11 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.
