Carbon 14 is an atom that takes a very long time 5,730 years for having of it to be made stable. It takes about 11,000 years this is the way you find how many years old bones. Are also there are these pits called the bear pits or something like that animals would get something they would get stuck. In these tar pits and animals would get stuck and they would die and there were tons of bones. And this is what they did they this was a long time ago so this was pretty dry now adays so they dig as much as they can.

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