There are more than 6000 species belonging to twenty-seven orders in the Class Mammalia. Comparative studies of this diverse and magnificent array of extant species provide valuable opportunities to formulate and test hypotheses concerning the evolution of reproduction. This is the first book to explore, in depth and breadth, the complex interrelationships that exist between patterns of mating behaviour and the evolution of mammalian reproductive anatomy and physiology. It focuses upon the role that copulatory and post-copulatory sexual selection have played during the evolution of the monotremes, marsupials and placental mammals, and examines the effects of sperm competition and cryptic female choice upon coevolution of the genitalia in the two sexes. In addition, due weight is also given to discussions of the modes of life of mammals, and to the roles played by natural selection and phylogeny in determining their reproductive traits.
This title introduces a theoretical framework for understanding women's sexuality based on comparative female sexuality across all vertebrate animals. It shows that estrus is present in human females, contrary to earlier research.
From the New York Times bestselling author of Upheaval, a fun and wide-ranging exploration of why human sexuality is so different from other animals', and how it made us who we are To us humans, the sex lives of animals seem weird. But it's our own sex lives that are truly bizarre. We are the only social species to insist on carrying out sex privately. Stranger yet, we have sex at any time, even during periods of infertility, such as pregnancy or post-menopause. A human female doesn't know her precise time of fertility and certainly doesn't advertise it to human males by the striking color changes, smells, and sounds used by other female mammals. Why do we differ so radically in these and other important aspects of our sexuality from our closest ancestor, the apes? Why does the human female, virtually alone among mammals, go through menopause? Why does the human male stand out as one of the few mammals to stay with the female he impregnates, to help raise the children that he sired? Why is the human penis so unnecessarily large? There is no one better qualified than Jared Diamond to explain the evolutionary forces that operated on our ancestors to make us so different sexually. With wit and a wealth of fascinating examples, Why Is Sex Fun? shows how our sexuality, as much as our large brains or upright posture, led to human' rise in the animal kingdom.
In this refreshingly down-to-earth exploration of human mating and sexuality, an acclaimed anthropologist looks at why we fall in love with the people we do. "A personal feminist take on the mating game." —Scientific American An acclaimed anthropologist looks at the fascinating intersection between the imperatives of our glands and genes, and the culture in which we live. Why do we fall in love with the people we do? Is there an alternative, more feminist, way to interpret traditional human sexual biology and evolution? These are but a few of the questions that anthropologist Meredith Small explores in her compelling book on human mating, What's Love Got to Do with It?
It's obvious why only men develop prostate cancer and why only women get ovarian cancer. But it is not obvious why women are more likely to recover language ability after a stroke than men or why women are more apt to develop autoimmune diseases such as lupus. Sex differences in health throughout the lifespan have been documented. Exploring the Biological Contributions to Human Health begins to snap the pieces of the puzzle into place so that this knowledge can be used to improve health for both sexes. From behavior and cognition to metabolism and response to chemicals and infectious organisms, this book explores the health impact of sex (being male or female, according to reproductive organs and chromosomes) and gender (one's sense of self as male or female in society). Exploring the Biological Contributions to Human Health discusses basic biochemical differences in the cells of males and females and health variability between the sexes from conception throughout life. The book identifies key research needs and opportunities and addresses barriers to research. Exploring the Biological Contributions to Human Health will be important to health policy makers, basic, applied, and clinical researchers, educators, providers, and journalists-while being very accessible to interested lay readers.
Reproduction in Mammals is intended to meet the needs of undergraduates reading zoology, biology, biochemistry, physiology, medicine, veterinary science and agriculture, and to be a source of information for advanced students and research workers. It is published as a series of small textbooks dealing with all major aspects of mammalian reproduction. Each of the component books is designed to cover independently fairly distinct subdivisions of the subject, so that readers can select texts relevant to their particular interests and needs. This volume consists of a series of thought-provoking essays by people with a number of very different backgrounds, including biology, comparative anatomy, psychology, psychiatry and moral philosophy. They discuss the physiology mechanisms, adaptive significance, clinical picture and social impact of a variety of patterns of human sexual behaviour, thereby providing a balanced and informative account of a highly sensitive and emotive subject.
This book demonstrates how detailed comparative analyses of the anatomy, reproductive physiology, and behaviour of non-human primates and other mammals can offer profound insights into the origins of human sexual behaviour.