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 ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...