Ebook: How We Do It The Evolution and Future of Human Reproduction

Basic Books. — 2013. — 320 p.
Despite the widespread belief that natural is better when it comes to sex, pregnancy, and parenting, most of us have no idea what “natural” really means; the origins of our reproductive lives remain a mystery. Why are a quarter of a billion sperm cells needed to fertilize one egg? Are women really fertile for only a few days each month? How long should babies be breast-fed?