Shonen Jump, a weekly manga magazine published by Shueisha, has been a major influence on the development of anime and manga culture in Japan, and has produced many popular anime series such as Dragon Ball, One Piece, and Naruto.

The Japanese river otter, once common throughout Japan, is now extinct due to habitat destruction and hunting.

Katsuobushi, a type of dried and smoked tuna that is often used to flavor dishes and is a key ingredient in dashi.