David Lack
British ornithologist and biologist (1910-1973)

David Lambert Lack FRS (16 July 1910 – 12 March 1973) was a British evolutionary biologist who made contributions to ornithology, ecology, and ethology. His 1947 book, Darwin's Finches, on the finches of the Galapagos Islands was a landmark work as were his other popular science books on Life of the Robin and Swifts in a Tower. He developed what is now known as Lack's Principle which explained the evolution of avian clutch sizes in terms of individual selection as opposed to the competing contemporary idea that they had evolved for the benefit of species (also known as group selection). His pioneering life-history studies of the living bird helped in changing the nature of ornithology from what was then a collection-oriented field. He was a longtime director of the Edward Grey Institute of Field Ornithology at the University of Oxford.
Education and early life
Lack was born in London, the oldest of four children of Harry Lambert Lack MD FRCS, who later became President of the British Medical Association. The name 'Lack' is derived from 'Lock.' His father grew up in a farming family from Norfolk and became a leading ear, nose, and throat surgeon at the London Hospital. Although his father had some interest in birds as a boy, it does not appear that he influenced David's interest. His mother Kathleen was the daughter of Lt. Col.
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This entry incorporates text from “David Lack” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.