Tooth

What Are Teeth?

Teeth are hard parts found in the mouths of many animals, including humans. They help break down food so it’s easier to swallow. Animals use their teeth in many ways, like catching food or tearing it apart.

Where Do Teeth Come From?

Teeth are found in the jaws or mouths of many vertebrates, which are animals with backbones. They are made from special tissues, not bone, and are covered by gums. Teeth can look different depending on the animal. Some animals, like sharks, can grow many sets of teeth during their lives. Others, like humans, grow two sets: baby teeth and adult teeth.

Fun Facts About Teeth

• Humans have 20 baby teeth and up to 32 adult teeth, including wisdom teeth.
• Rodents, like mice and beavers, have special front teeth that grow continuously. They need to chew on hard things to keep these teeth wearing down.
• Elephants use their tusks, which are special teeth, for digging up food and defending themselves.
• Sharks can lose and grow new teeth many times throughout their lives.

Teeth are very important for scientists who study ancient animals. Because teeth are strong, they often stay preserved even when bones do not. This helps scientists learn about what ancient animals ate and how they lived.