Since you are reading this, you likely know that grooming is an important activity within a chimpanzee group, whether that group is in the wild or in captivity. Because us humans are a part of their social network, we take part in grooming with them, both as the groomer and the groomie (is groomie an actual word? grooming receiver is perhaps the more technical phrase).
Grooming, like many social behaviors, can be somewhat contagious, in that if you see some friends grooming, you might join in or you might find someone else to groom with you.
