The weak jaw epidemic: poor eating and/or bad breeding?

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Are crooked teeth more the result of a long evolutionary process which resulted in small jaws, or is it the lack of hard foods we feed infants?

What can be done about it?

Article by Stanford's finest, arguing environmental factors are the main source of "malocclusion:"

https://academic.oup.com/bioscience/article/70/9/759/5872832

Mainstream orthodontists' take (written 2 years before the Bioscience article as a critical response to a book written by two authors of the said article):

https://www.toportho.org/think-pieces/jaws-dr-proffit-and-dr-ackerman-review-a-sensationalist-book