BUFFALO, N.Y. ­­ ­ ­­â€” Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.
Chimpanzees and bonobos are among the closest relatives of humans. They share more than 98% of our DNA. Yet, these primates are remarkably different in their behaviour and ecology. The case studies of ...