Curious Kids[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to This email address is being protected from spambots. You need JavaScript enabled to view it.[2].Why do people have two sets of teeth? – Ivy D., age 11, Hyde Park, New York Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink