At a prehistoric archaeological site in Turkey, researchers have discovered two 8,500-year-old human teeth, which had been used as pendants in a necklace or bracelet. Researchers have never documented ...

A lot of us are familiar with the advice that we should brush our teeth twice a day, and for at least two minutes each time. Many of us over-estimate how long we brush our teeth for—by as much as a ...

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 ...