The Japanese murrelet is a small seabird that is native to Japan's coastal waters and is known for its distinctive black and white markings.

The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.

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