Complex sentence: Women, on the other hand, provided the other 80% of the food through gathering and capturing small game near their campsites; they were also what Boulding calls the "breeder-feeders," producing and feeding the family.
Split into simpler sentences: Women, on the other hand, provided the other 80% of the food through gathering and capturing small game near their campsites. They did this while also being what Boulding calls the "breeder-feeders," producing and feeing the family.