Last week we talked about a new study that showed orangutans use more consonant sounds than other great apes. That study hinted at some of the reasons human speech may have developed. Today we write about a chimpanzee study that shows our close relatives have gesture dialects that differ among groups of chimpanzees. According toContinue reading “More Primate Language: Chimpanzees Have “Gesture Dialects” That Provide Communication, Differ Among Groups”