Differences in Dental Morphology (IMAGE) University of Bristol Caption The differences in dental morphology are obvious between <em>Australopithecus africanus</em> (TM1518 to the left) and early Homo (SK27 to the right), but these teeth are also different in their calcium stable isotopes compositions, unveiling group specific nursing behaviors. Credit Vincent Balter Usage Restrictions Single use only for use with press release. License Licensed content 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.