What teeth reveal about nutrition and migration (IMAGE) Staatliche Naturwissenschaftliche Sammlungen Bayerns Caption Researchers were able to obtain information about the earliest phase of life of adult humans from the early Middle Ages through isotope analyses of their teeth. Credit M. Harbeck, Staatssammlung für Anthropologie München (SNSB-SAM) Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.