Male Guinea baboons fiddle with one another’s genitals when they perform a complex greeting ritual; the fiddling follows face pulling and rump presentation. White-faced capuchin monkeys, in contrast, stick their fingers up one another’s noses.
Male Guinea baboons fiddle with one another’s genitals when they perform a complex greeting ritual; the fiddling follows face pulling and rump presentation. White-faced capuchin monkeys, in contrast, stick their fingers up one another’s noses.