They say that
their study adds to proof that the animals can plan over the long-term.
are thought to be among humans’ closest living relatives.
have shown that male chimps often share their meat with females
who do not go out to hunt.
had long speculated that this generosity was used to increase their
chances of mating, there was little evidence that this was the case.
But new research,
carried out in the Ta National Park in the Ivory Coast, shows that
the males who shared meat were twice as likely to mate as those
who did not.