The application of a new method for analyzing the chemistry of tooth enamel allows scientists to examine molars of prehuman ancestors and determining

Through the application of a new method for analyzing the chemistry of tooth enamel, the molars of prehuman ancestors were examined by scientists who determined

When they applied a new method for analyzing the chemistry of tooth enamel, scientists examined molars of prehuman ancestors, determining

Applying a new method for analyzing the chemistry of tooth enamel, the molars of prehuman ancestors have been examined by scientists, who determined

Applying a new method for analyzing the chemistry of tooth enamel, scientists have examined molars of prehuman ancestors and determined