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Now this particular shark is, well they're all scientifically very interesting. This one is very interesting simply because of its longevity, and that's why scientists are trying to study it, to see why this animal looks so long. And it's the green and shark. So how old is the oldest green and shark? This is a multiple answer question here, I'll give you. And so what do you think? It's a 263 years, 392 years, 437 years, or 512 years. So how old do you think was the oldest green and shark? I think it would be older one down there, but this is the one that they were actually studying. So 263 years, 392, 437, or 512. I'll say 437.