The Japanese raccoon dog, also known as the tanuki, is a species of wild dog that is native to Japan and is famous for its mythical reputation in Japanese folklore.

The Japanese spider crab is the largest arthropod in the world, with a leg span of up to 4 meters (13 feet).

The Japanese firefly is a species of firefly that is famous for its bioluminescence, and is a popular sight during the summer months.