"Sex not War": Bonobos' Closeness to Humanity

Bonobos seem to have behavior characteristics which humans hope for (somewhat naively perhaps), at least in terms of their overall peacefulness. It seems that we are, however, more closely related to the common chimpanzee, which shows much more aggressive behavior within a troop, and especially towards "foreigners."

From Wikipedia:

Frans de Waal, one of the world's leading primatologists, states that the Bonobo is often capable of altruism, compassion, empathy, kindness, patience and sensitivity.
...
Recent observations in the wild have seemed to indicate that the males among the Common Chimpanzee troops are extraordinarily hostile to males from outside of the troop. Parties are organized to "patrol" for the unfortunate males who might be living nearby in a solitary state. (Some researchers have suggested, however, that this behaviour has been caused by a combination of human contact and interference and massive environmental stress caused by deforestation and a corresponding range reduction.) This does not appear to be the behavior of the Bonobo males or females, both of which seem to prefer sexual contact with their group to violent confrontation with outsiders.
...
Bonobos are capable of passing the mirror-recognition test for self-awareness. They communicate through primarily vocal means, although the meanings of their vocalizations are not currently known; however, humans do understand their facial expressions and some of their natural hand gestures, such as their invitation to play. Two Bonobos, Kanzi and Panbanisha have been taught a vocabulary of about 400 words which they can type using a special keyboard of lexigrams (geometric symbols), and can respond to spoken sentences. Some, such as bioethicist Peter Singer, argue that these results qualify them for the "rights to survival and life", rights that humans theoretically accord to all persons.