The rise of farming altered our bite and changed how people talk
Eating softer food preserves a slight overbite that makes it easier to pronounce certain sounds
![a composite photo of two skulls showing differences in overbites](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/03/031419_bb_jawsound_feat.jpg?fit=860%2C460&ssl=1)
SOUND BITES The skull of an ancient female hunter-gatherer from Romania (left) lacks a slight overbite seen in the 2,500-year-old skull of an adult male from Greek civilization (right).
Mihai Constantinescu, Institutul de Antropologie; Gianni Tortoli/Science Source