Sarah Hrdy is one of my major heroes. She's developed some of the most fundamental (and controversial) theories in anthropology, has examined anthropological theory through the lens of feminism, unapologetically calls herself a sociobiologist, and seamlessly ties primatological research to understanding human behavior and evolution. In addition, she also writes fantastic books and articles. So here are a couple links to some great material: the first is a Discover article about her, the second is a recent article published in Natural History, entitled "Meet the Alloparents," which discusses some of topics addressed in her recent book, Mothers and Others.
The Hardy Sarah Blaffer Hrdy
Meet the Alloparents