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 ...

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 ...

Following is a transcript of the video. Narrator: Humans need dentists. It's a fact. In 2017 alone, Americans spent $124 billion on dental visits. And an estimated 90% of adults in the US have ...