argumate:

This state of affairs sets up an interesting dynamic between males and females. Sometimes a begging female does not receive any meat until after the male copulates with her (even while clutching the freshly killed carcass). Some other observations are also telling. Not only does the size of a hunting party increase in proportion to the number of estrous females present, but the presence of an estrous female independently increases the likelihood that there will be a hunt. Such observations suggest that male chimpanzees use meat as a tool to gain access to sexually receptive females. But females appear to be getting reproductive benefits as well: William McGrew of Miami University in Ohio showed that female chimpanzees at Gombe that receive generous shares of meat produce more offspring that survive.

https://www.americanscientist.org/issues/pub/chimpanzee-hunting-behavior-and-human-evolution/

courtesy of @karnsway