Animals
  • Forget Facebook, Primates Use Facial Variety to Distinguish Among Themselves

    University of California - Los Angeles researchers report Old World African and Asian primate species are more social and have more complex facial patterns than their counterparts in Central and South America. The primates also exhibit greater variety in facial features and coloration, which the researchers suggest is something the primates have been relying on to tell one another apart for the past 50 million years.