... years, in an attempt to understand and explain the differences in social activity between the two respective groups. The findings of these two researchers will be used to explain the social interactive differences within groups of chimpanzees and groups of bonobos, along with their own explanations as to why these differences exist. Professor Takayoshi Kano, one of the world's key specialists on the bonobo species, studied the pygmy chimpanzee 'first hand' from 1974 to 1985 in Central Zaire's tropical rain forests, the only place where bonobos are known to exist in the wild. (Kano, 1992, p37) He found many differences in the behavioural patterns of the bonobo, compared to that of the common chimpanzee, especially in relation to how they socially interact within their respective groups. Kano noted from other researchers that the common chimpanzee had been known to kill members of its own kind through either infanticide, the killing of ...

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