E.O. Wilson, in full Edward Osborne Wilson, (born June 10, 1929, Birmingham, Ala., U.S.—died Dec. 26, 2021, Burlington, Mass.), U.S. biologist. He received a Ph.D. from Harvard University, where he taught from 1956. Recognized as the world’s leading authority on ants, he discovered their use of pheromones for communication. His The Insect Societies (1971) was the definitive treatment of the subject. In 1975 he published Sociobiology, a highly controversial and influential study of the genetic basis of social behaviour in which he claimed that even a characteristic such as unselfish generosity may be genetically based and may have evolved through natural selection, that preservation of the gene rather than the individual is the focus of evolutionary strategy, and that the essentially biological principles on which animal societies are based apply also to human social behaviour. In On Human Nature (1978, Pulitzer Prize) he explored sociobiology’s implications in regard to human aggression, sexuality, and ethics. With Bert Hölldobler he wrote the major study The Ants (1990, Pulitzer Prize). In The Diversity of Life (1992) he examined how the world’s species became diverse and the massive extinctions caused by 20th-century human activities. In Consilience: The Unity of Knowledge (1998) he proposed that all of existence can be organized and understood in accordance with a few fundamental natural laws. Wilson’s other books included The Social Conquest of Earth (2012) and Half-Earth: Our Planet’s Fight for Life (2016). Naturalist (1994) is an autobiography.
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