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Yes, in that screenshot actually you see that they did something like that with the eye of the shark. There could be some peculiarities about the eyes of those animals though that would prevent this from being accurate.
Yeah the issue with radiocarbon dating is that it works at a much cruder scale (hence the error range) that's why I'm curious if there's anything else (like rings for trees).
Yeah... and the have cartilage instead of bones...
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