Teeth Started Out As Scales and Evolved to be in Our Mouth

Umm apparently our teeth didn’t start in our mouth?! Scientists just discovered that teeth started out on the outside of the body and then transformed/evolved to be in our mouth. Spooky Science Series is BACK BABY 👻

Scientists led by Dr. Yara Haridy found ancient fish that were covered with teeth-like scales all over their body that they used to sense their environment. We don’t have teeth for scales anymore but we have kept some if not all of the sensory nerves to this day.

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