Sir Edward Bagnall Poulton, FRS HFRSE FLS (27 January 1856 – 20 November 1943) was a British evolutionary biologist who was a lifelong advocate of natural selection through a period in which many scientists such as Reginald Punnett doubted its importance.
He invented the term sympatric for evolution of species in the same place, and in his book The Colours of Animals (1890) was the first to recognise frequency-dependent selection.
Poulton is also remembered for his pioneering work on animal coloration.
He is credited with inventing the term aposematism for warning coloration, as well as for his experiments on 'protective coloration' (camouflage).
Poulton became Hope Professor of Zoology at the University of Oxford in 1893.
James Lafayette (died 1923). Information provided by Valerie McAtear from the Royal Entomological Society: "We do have a copy in our photograph collection and the only information I can provide is that printed on the back is Copyright photograph by Lafayette Ltd"