Robin Baker (born 13 March 1944) is a British novelist, popular science writer, lecturer and broadcaster. A best-selling author in the field of sexual biology his books have been translated into 27 different languages. These include the international bestseller Sperm Wars which was based on his own lab's original research on human sexuality. His work and ideas on the evolution of human behaviour have been featured in many radio and television programmes around the world. Education and early life Born in Wiltshire, England in 1944, Robin Baker grew up in the small village of Manningford Bruce in the Vale of Pewsey. Educated at Marlborough Royal Free Grammar School, where thirty years earlier the author William Golding had also been educated, he gained his Bachelor of Science degree in Zoology from the University of Bristol in 1965, followed by a PhD in 1969 supervised by H. E. Hinton. His thesis investigated the evolution of the migratory habit in butterflies and applied principles of behavioural ecology and evolutionary biology to the insect migration. This work was subsequently published in the Philosophical Transactions of the Royal Society. Career and research Baker moved to the University of Newcastle in 1970 and from there to the University of Manchester in 1974 where he was first a lecturer, and in 1981 a Reader in Zoology in the School of Biological Sciences. In 1996 he left academic life to concentrate on his career in writing and broadcasting. Although his early work was on evolutionary aspects of insect migration and territoriality, his interests broadened. With G.A. Parker and V.G.F. Smith in 1972, he proposed a theory for the evolution of anisogamy and two sexes and in 1979, with G.A. Parker he proposed the Unprofitable Prey Theory of the evolution of bird coloration. In 1978 in his book The Evolutionary Ecology of Animal Migration he wrote for the first time on the theme that permeated his work for the rest of his academic life: the application of the principles of evolutionary biology to the behaviour of humans. This led in the 1980s to controversial work on the role of magnetoreception in the navigation of humans, and in the 1990s (with Mark Bellis) to a study of sperm competition in humans and rats, including proposal of the kamikaze sperm hypothesis. Baker and Bellis' research into the evolutionary biology of infidelity, masturbation, sperm polymorphism, and sperm number in humans, as well