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A chimpanzee has been filmed using tools to apparently clean the corpse of her adopted son, the first hint that animals other than humans have practices for preparing the dead.
Female chimp Noel, who lives at the Chimfunshi Wildlife Orphanage Trust in Zambia, was seen using a stem of grass to remove debris from the teeth of a young male named Thomas, whom she had looked after since the death of his mother four years earlier.