  Finally, much feminist philosophy of biology is also very concerned with getting the biology right. Many feminist philosophers of biology were initially trained as scientists and are interested not just in critiquing, but also in improving the practice of science as it relates to sex and gender. Along similar lines, feminist philosophers have also documented the impact of feminism on improving the practices of the biological sciences themselves. For example, Donna Haraway's book Primate Visions (1989) documents the influence that the incorporation of feminist women in primatology had on the study of primate behavior and animal behavior more generally. Haraway shows that feminist primatologist Jeanne Altmann, instigated a quiet but powerful methodological revolution. In one of the most cited papers in the study of animal behavior, “Observational study of behavior: Sampling methods” (1974), Altmann evaluated a range of sampling methods and in doing so developed a method, focal-animal sampling, that undermined previous research generating sexist accounts of leadership and control, and enabled research on female primates and on novel topics such as mothering. Altmann, troubled by the androcentric focus in primatology and less than rigorous methodologies, brought her perspectives as a woman, a feminist, a mother, and a mathematically trained scientist to bear on improving research methods. Focal animal sampling provides an effective method for studying the social behavior of female primates and has become an important approach in animal behavior research in general. Haraway's description of Altmann's contributions to primatology and animal behavior provides an example of the positive impact of feminism and feminist scientists on the practices and products of scientific research.