Kanzi, 31-year-old Food Cooking Bonobo Chimpanzee

Multivariate analysis has shown bonobos are more neotenized than the common chimpanzee, taking into account such features as the proportionately long torso length of the bonobo. Other researchers challenged this conclusion.
Behaviour
Primatologist Frans de Waal states bonobos are capable of altruism, compassion, empathy, kindness, patience, and sensitivity. However, some have disputed how peaceful bonobos are.