Normal adult humans have 32 teeth. Rarely, someone has a condition called hyperdontia where they have more than 32. This happens with around 1-2% of the population. Sometimes, those with hyperdontia ...

A pediatric dentist and an anthropologist explain how baby teeth and adult teeth help humans chomp their food over a long ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

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 ...