East Japan tree frog
Amazing fact
The East Japan tree frog was once considered the same species as the Japanese tree frog.
上野動物園
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An illustration based on the real animal.
A little discovery to share.
The East Japan tree frog was once considered the same species as the Japanese tree frog.
THE REAL WORLD
The real East Japan tree frog
- Scientific name
- Dryophytes leopardus
- Japanese name
- ヒガシニホンアマガエル
- Group
- Amphibians and reptiles
- Class
- Amphibia
- Order
- Anura
- Family
- Hylidae
- Genus
- Dryophytes
Frogs long treated as a single species, the Japanese tree frog, have been split into eastern and western species; this is the eastern one.
Males often call when it starts to rain, and that is where the frog's Japanese name, meaning "rain frog," comes from.
It is usually green, but it changes color to match its surroundings, turning grayish brown on tree trunks.
Each fingertip has a sticky pad, so it can cling to walls and trees and climb them well.
How the East Japan tree frog lives
As a tadpole, it eats algae and dead animals, among other foods. After changing into a frog, it eats spiders and insects, among other animals. It lives on low woody plants and grasses or other herbaceous plants.
上野動物園Basic data
- Size
- Body length: males 2.2–3.9 cm, females 2.6–4.5 cm
- Diet
- Spiders, insects, and other animals
- Range
- Japanese archipelago east of Kinki and Sakhalin
Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.
Names around the world
- 日本語
- ヒガシニホンアマガエル
- 简体中文
- 东日本雨蛙
- 繁體中文
- 東日本雨蛙
- 한국어
- 동일본청개구리
- Deutsch
- Ostjapanischer Laubfrosch
- Русский
- Леопардовая квакша
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 上野動物園 — ヒガシニホンアマガエルChecked: 2026-11-03
We check each fact against its source. The illustrations simplify how the real animal looks.
The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.
The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.
This page was translated from the original Japanese with the help of AI.
Report a mistakeEXHIBIT INFORMATION
Places that keep or show the East Japan tree frog
Zoos, aquariums and other places whose official websites say they keep or show this animal.
Displays can change with the animals’ health and the seasons. Check each facility’s official website before you go.
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Others in Hylidae
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