A secret in saliva: Food and germs helped humans evolve into unique member of great apes: Researchers say human and primate saliva ‘could be overlooked hotbeds of evolutionary activity’

ScienceDaily | Oct 17, 2019 at 12:43 PM
  • The research discovered that the human diet — a result of increased meat consumption, cooking and agriculture — has led to stark differences in the saliva of humans compared to that of other primates.
  • The findings came as a big surprise to the researchers, since humans are known to be genetically close relatives of the great apes, chimpanzees and gorillas.
  • The research was supported by the National Institute of Dental and Craniofacial Research and the National Cancer Institute, both within the National Institutes of Health, as well as by Roswell Park Comprehensive Cancer Center.