That guy who has the museum in Kentucky showing dinosaurs and people living together is right. The dinosaurs had heavier bones, so when they died they sank deeper in the ground than the people, who had lighter bones. And the carbon deeper in the ground is older than the carbon in the upper zones, so therefore when the bones suck up that carbon it will give a false reading on the bones' age.

That's the coyote theory and you can take it to the bank.