Wrinkled frog

Amazing fact

Some wrinkled frogs spend the winter as tadpoles.

京都府

Wrinkled frog in its habitat (illustration)

No sign-up needed. You can save notes on this device.

An illustration based on the real animal.

A little discovery to share.

Some wrinkled frogs spend the winter as tadpoles.

Source京都府 — ツチガエル

THE REAL WORLD

The real Wrinkled frog

Scientific name: Glandirana rugosa
Japanese name: ツチガエル
Group: Amphibians and reptiles

Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Glandirana

Facts about the real animal.

It is also listed under the scientific name Rana rugosa.

A frog that lives in Japan and other places.

鳥羽水族館 — ツチガエル

It protects itself by giving off a smelly liquid from its skin.

鳥羽水族館 — ツチガエル

Even animals that eat frogs seldom attack it.

鳥羽水族館 — ツチガエル

How the Wrinkled frog lives

It breeds in rice paddies and slow-flowing parts of mountain streams. Males call "gyu, gyu" at the water surface. As a frog, it eats small insects such as ants, as well as spiders. In winter, it stays in places such as the mud of ponds and channels.

京都府国立環境研究所

Basic data

Range: Japan, Korean Peninsula, China, and Russia

鳥羽水族館

Where the Wrinkled frog has been recorded

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Where it livesJapan Rivers and wetlands

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: ツチガエル
简体中文: 日本皱皮蛙
繁體中文: 日本皺皮蛙
한국어: 옴개구리
Español: Rana Rugosa Japonesa
Deutsch: Japanischer Faltenfrosch
Português (Brasil): Rugosa rugosa
Tiếng Việt: Rana rugosa
Русский: Бугорчатая лягушка

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

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 mistake