Scientists at the Royal Zoological Society of Antwerp have carried out an intelligence test which pitted bonobos against chimpanzees as part of a campaign to help publicise the African trade in bonobos as bushmeat.



The bonobos, chimp-like apes who live in matriarchal family groups and frequently use sex to resolve social conflicts, defied expectations by beating the group of chimpanzees in intelligence tests, because the chimps were too busy fighting among themselves for dominance