Classroom Questions Questions for ‘Cool Jobs: Drilling into the secrets of teeth’ The jaw from a skull excavated in Nepal around A.D. 500. By studying the DNA from food and bacteria trapped in the teeth of such ancient peoples, anthropologists can learn what these folk ate and what diseases they suffered long ago. Christina Warinner Share this:EmailFacebookTwitterRedditGoogle ClassroomPrint By Science News for Students February 1, 2018 at 6:30 am Classroom questions are available for free with registration. Learn more Register to access: Client key* E-mail* Log in Already Registered? Enter your e-mail address above.