Eastern Japanese common toad
Amazing fact
Eastern Japanese common toads differ greatly in body size depending on where they live.
上野動物園
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An illustration based on the real animal.
A little discovery to share.
Eastern Japanese common toads differ greatly in body size depending on where they live.
THE REAL WORLD
The real Eastern Japanese common toad
- Scientific name
- Bufo formosus
- Japanese name
- アズマヒキガエル
- Group
- Amphibians and reptiles
- Class
- Amphibia
- Order
- Anura
- Family
- Bufonidae
- Genus
- Bufo
It used to be treated as a subspecies of the Japanese common toad, but it is now considered a separate species.
A toad found in Japan and nowhere else. It lives from seashores to high mountains, and even in city parks and gardens around houses.
When it senses danger, it puffs up its body to show off the large glands behind its eyes. These glands give off a white poison.
Tadpoles eat plant matter such as fallen leaves and moss, while adults eat insects, slugs and similar small animals.
Basic data
- Size
- Body length: 4–16.5 cm
- Diet
- Insects, slugs, and other animals
- Range
- Tohoku to Kinki and northeastern Sanin in Japan
Where the Eastern Japanese common toad has been recorded
Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF
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
- アズマヒキガエル
- 简体中文
- 关东蟾蜍
- 繁體中文
- 關東蟾蜍
- 한국어
- 동일본두꺼비
- Deutsch
- Östliche Japan-Erdkröte
- Русский
- Жаба японская
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 — アズマヒキガエル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 Eastern Japanese common toad
Zoos, aquariums and other places whose official websites say they keep or show this animal.
Kanto
Displays can change with the animals’ health and the seasons. Check each facility’s official website before you go.
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