Oma’s tourist board describes itself as “Japan’s Most Famous Tuna Town.” In 2019, a 613-pound Oma tuna fish at the same Tokyo market fetched $3.1 million, making it the most expensive fish ...

Female fish may then collect the fertilized eggs and deposit them on plants. Medaka–aka the Japanese rice fish–are only about 1.4 inches long and can be found in rice paddies, ponds ...