Analysis of information sources in references of the Wikipedia article "Bonobo" in English language version.
...twenty-two mature community members (eight males, fourteen females)could be identified using facial features...
Even juveniles participate by rubbing their genital areas against adults, although ethologists don't think that males actually insert their penises into juvenile females.
Even as infants, bonobos use socio-sexual behavior, whereas the same behavior is completely absent in chimpanzee infants. Findings suggest that sociosexual behavior in infant bonobos serves functions during social feeding that is not closely tied to reproduction. Moreover, their sexual behavior development is not dependent on a gradual learning process facilitated by interactions with adults or by close observation of such behavior.
Even as infants, bonobos use socio-sexual behavior, whereas the same behavior is completely absent in chimpanzee infants. Findings suggest that sociosexual behavior in infant bonobos serves functions during social feeding that is not closely tied to reproduction. Moreover, their sexual behavior development is not dependent on a gradual learning process facilitated by interactions with adults or by close observation of such behavior.
Even as infants, bonobos use socio-sexual behavior, whereas the same behavior is completely absent in chimpanzee infants. Findings suggest that sociosexual behavior in infant bonobos serves functions during social feeding that is not closely tied to reproduction. Moreover, their sexual behavior development is not dependent on a gradual learning process facilitated by interactions with adults or by close observation of such behavior.
Even juveniles participate by rubbing their genital areas against adults, although ethologists don't think that males actually insert their penises into juvenile females.