Unbelievably, The Oldest Koi Fish In The World Was 226 Years Old

 The scarlet-coloured female was born in 1751 during the Tokugawa era in Japan.

Though the average lifespan of a scarlet koi carp is approximately 40 years, Hanako managed to live well into the 1970s and was aged 226 when she departed.

Her marvellous story was first shared when her last owner Dr Komei Koshihara made a national telecast in 1966 on Nippon Hoso Kyokai radio station.

Koshihara said he was aware of Hanako’s age as he had it confirmed by professor Masayoshi Hiro, who worked at the Laboratory of Animal Science of the Nagoya Women’s College.

Two of the fish’s scales had been plucked and examined over the course of two months, letting Hiro calculate the rings of growth on her scales to ascertain her age.

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