One study examined Greenland sharks that were bycatch in fishe | Facts Fever ™

One study examined Greenland sharks that were bycatch in fishermen’s nets. The largest shark they found, a 5-meter female, was between 272 and 512 years old according to their estimates. ⁠
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Recent breakthroughs allowed scientists to use carbon dating to estimate the age of Greenland sharks. ⁠
Inside the shark’s eyes, there are proteins that are formed before birth and do not degrade with age, like a fossil preserved in amber. Scientists discovered that they could determine the age of the sharks by carbon-dating these proteins.⁠
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