Why Do We Have Such Crooked Teeth?

The video explores why humans often have crooked teeth, linking it to the evolution of our jaw structure due to changes in diet and lifestyle over thousands of years. The transition to agriculture led to softer diets, reducing the need for strong jaws and resulting in smaller jawbones but the same number of teeth, causing crowding. Studies show that hunter-gatherers had longer jaws compared to farmers. This change is attributed to developmental plasticity rather than genetic evolution. The video suggests that diet, particularly the consumption of softer, cooked foods, plays a significant role in jaw development, potentially leading to orthodontic issues.

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