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The bone is believed to have belonged to a member of the Hohokam people, an ancient group considered to be ancestors to modern Native Americans in Arizona.
Archaeological experts say the discovery is a cautionary tale about the consequences of citizen investigators taking matters into their own hands.
Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the fossilized bones. But new research into some of dinosaurs' living relatives, like crocodiles, suggests that this method may not always work.
Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the fossilized bones. But new research into some of dinosaurs' living relatives, like crocodiles, suggests that this method may not always work.Open