Where did Teeth Come From??

The video explores the origins of teeth, discussing three main hypotheses: the classic 'outside in' model suggesting teeth evolved from fish scales, the 'inside out' model proposing teeth originated in the mouth, and the 'inside and out' model indicating both teeth and scales evolved from basic structures. Despite various fossil evidence and genetic studies, the true origin remains debated among scientists.

What new insight or understanding did you gain from this video?