Bonobos Appear to Say ‘Hello’ and ‘Goodbye’ to Each Other
You do n’t take the air up to a coworker without some sort of greeting , and you do n’t terminate conversations plainly by turning heel . There are rule to the game of social behavior , and now a enquiry team studying chimpanzees and bonobos say those great aper have social habits that look a flock like what we humans call “ hello ” and “ good-by . ”...