You probably don't think twice about chewing, but scientists now say the evolution of chewing could have played a major role in how humans evolved over time. A new study researchers published in the ...

While some people have heard of pica - the mental health condition that causes people to want to chew or eat substances of no nutritional value such as paper, clay or dirt - fewer people have heard of ...

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...

Losing a tooth is tough. If we lose the small living structures that help us chew our food, we're left with the options of replacing them with dentures or implants that can be costly. Beyond that, ...