Chimps, on the other hand ... and even reconciliation. Bonobos are the only non-human primates known to engage in tongue ...

Humans share this behavioral strategy with our closest living ape relatives—bonobos and chimpanzees ... including body kissing, but sex still constituted a sizable portion of how they reconciled ...

Only identified as a species separate from chimps in 1929, bonobos intrigue biologists with their easygoing ways, sexual equality, female bonding, and zeal for recreational sex. How did bonobos ...