Dashi, a type of stock made from fish and seaweed, is a key ingredient in many Japanese dishes and is often used to add flavor and umami.

The Japanese night heron is a species of heron that is found throughout Japan's wetlands and is known for its distinctive long neck and beak.

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.