  This entry is divided into five sections. The introductory section discusses some of the challenges of defining feminist philosophy of biology and highlights areas of commonality with non-feminist philosophy of biology. The second section explores the variety of motivations and epistemic perspectives found within feminist philosophy of biology. The third section considers, in some depth, two central examples of feminist analysis of biological research: a) sexual selection and b) sociobiology and evolutionary psychology of sex and gender. In section four I discuss feminist analyses of some foundational concepts within philosophy of biology and philosophy of science more generally, such as biological determinism and reductionism. Many of these foundational concepts are considered by both feminist and non-feminist philosophers of biology. The entry concludes with a discussion of opportunities for further research in feminist philosophy of biology.