(ISNS) -- The great apes known as bonobos can make stone tools far more varied in purpose than previously known, reaching a level of technological competence formerly assigned only to the human lineage, according to researchers.
These findings may shed light on the mental capabilities of the last common ancestor of humans and these apes, scientists added.
Bonobos are, with chimpanzees, humanity's closest living relatives. Together bonobos and chimps are part of the group Pan, just as modern humans and extinct species of humans make up the group Homo.
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