What's inside a Megalodon Tooth?

This Megalodon shark tooth is over 3 million years old! Thanks to Sensodyne for sponsoring this video. Take control of tooth sensitivity and improve gum health with Sensodyne Sensitivity & Gum: https://www.sensodyne.com/en-us/

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What's inside a Mammoth Tooth? https://www.youtube.com/watch?v=_cOWQRrJvMU

What's inside Dinosaur Poop? https://www.youtube.com/watch?v=FXCuswJE1fo

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Filmed in 4k on this camera: http://amzn.to/1UnXI82