Nicholas Hamilton Barton FRS FRSE is a British evolutionary biologist. He was educated at Peterhouse, Cambridge where he graduated with a first-class degree in Natural Sciences in 1976 and gained his PhD under Godfrey Hewitt at the University of East Anglia in 1979. After a brief spell as a lab demonstrator at the University of Cambridge, he became a Lecturer at the Department of Genetics and Biometry, University College London, in 1982. Professor Barton is best known for his work on hybrid zones, often using the toad Bombina bombina as a study organism, and for extending the mathematical machinery needed to investigate multilocus genetics, a field in which he worked in collaboration with Michael Turelli. Concrete research questions he has investigated include: the role of epistasis, the evolution of sex, speciation, and the limits on the rate of adaptation. 

August 30th, 1955 in United Kingdom (Age 68)