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Animals in Japan

27 mammal species are recorded in Japan in this dataset, 5 of them in a threatened Red List category. Japan sits in Asia, where 324 species are recorded in total. Every species below is listed because the range description of its IUCN Red List assessment names Japan.

They belong to 21 families, the best represented being Balaenopteridae (2), Canidae (2), Otariidae (2). By Red List category: 2 Endangered, 3 Vulnerable, 1 Near Threatened, 21 Least Concern.

These counts come from the text of each assessment rather than from an official country checklist, so a species whose assessment names a region without naming Japan is missing here, and a wide-ranging animal is counted in every country it crosses. All 27 of them have a full written profile.

Species recorded
27
Threatened
5
Continent
Asia
Data updated
August 9, 2026

Conservation status in Japan

The most threatened species in Japan

5 of the 5 species recorded here that the IUCN Red List places in a threatened category — Vulnerable, Endangered or Critically Endangered.

The families found in Japan

  • Balaenopteridae 2
  • Canidae 2
  • Otariidae 2
  • Sciuridae 2
  • Soricidae 2
  • Ursidae 2
  • Bovidae 1
  • Cercopithecidae 1

Every species recorded in Japan

All 27 of them, written profiles first.

Where to go from Japan

The countries in Asia that share the most species with Japan, by number of species recorded in both.

Species data from the IUCN Red List; countries are derived from the range description of each assessment. Last refreshed on August 9, 2026.