F AND V

 A

Here’s a 3‑point summary of the idea that agriculture may have shaped both human jaws and aspects of language:

1. Diet Changed Jaw Structure – The shift from hard, tough hunter‑gatherer foods to softer agricultural foods (like porridge and cheese) reduced tooth wear and gradually altered human bite configuration, leading to more overbites and smaller jaws over millennia. This trend has been linked to the Neolithic adoption of farming and softer diets. (Scientific American)

2. Jaw Shape Influenced Speech Sounds – Research suggests that these anatomical changes made it easier to produce certain consonant sounds, especially labiodentals such as “f” and “v,” because an overbite brings the lower lip into contact with the upper teeth. These sounds are more common in languages of food‑producing societies than in hunter‑gatherer languages. (Scientific American)

3. Language Can Be Shaped by Biology and Culture – The study’s findings imply that human language sound systems are not frozen in time but rather are influenced by cultural changes that affect biology—in this case, diet influencing jaw anatomy and thus what sounds are easier to articulate. (Scientific American)

Let me know if you’d like this in an even simpler version or a catchy one‑line takeaway!