Long before evolution equipped them with the right teeth, early humans began eating tough grasses and starchy underground plants—foods rich in energy but hard to chew. A new study reveals that this ...

Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic ...

You only get 52 teeth in your lifetime: 20 baby teeth, followed by 32 adult teeth. It’s not like that for all animals. Some, like rodents, never replace their teeth. Others, like sharks, keep ...

Not everyone has wisdom teeth, which usually develop fully at the back of the mouth between the ages of 18 and 24 years. Various factors can result in a lack of wisdom teeth, including genetics and ...

It’s not surprising that many people fear the dentist. Replacing a tooth often requires invasive surgery and implanting a titanium screw into a patient’s jawbone, then waiting months for that to ...