Without reading the article my guess is it's a https://en.wikipedia.org/wiki/Greenland_shark#Longevity https://en.wikipedia.org/wiki/Greenland_shark#Longevity

Without reading the article my guess is it's a https://en.wikipedia.org/wiki/Greenland_shark#Longevity https://en.wikipedia.org/wiki/Greenland_shark#Longevity They're estimated to live between 250 and 500 years.