Homo Mysterious

For all that science knows about the living world, there are even more things that we don't know, genuine evolutionary mysteries that perplex the best minds in biology. And paradoxically, many of these mysteries are very close to home: They involve some of the most personal aspects of being human, including such unresolved questions as why do women experience orgasm, menstruation and menopause, why do men have a shorter lifespan than women, and why does homosexuality exist? Homo Mysterious examines these and other evolutionary mysteries, exploring things that we don't (yet) know about ourselves, laying out the best current hypotheses and pointing toward insights that scientists are just beginning to glimpse.