Adam's Curse
Adam's Curse: A Future Without Men (also known as Adam's Curse: A Story of Sex, Genetics, and the Extinction of Men) is a 2003 book by Oxford University human genetics professor Bryan Sykes expounding his hypothesis that with the declining sperm count in men and the continual atrophy of the Y chromosome, within approximately 125,000 years men shall become extinct. Sykes thinks one of the options for humanity's survival is unisex reproduction by females: female eggs fertilised by the nuclear X chromosomes of another female and implanted using in vitro fertilisation methods.