Complex sentence: Major Kenneth Mellanby (26 March 1908--23 December 1993) was an ecologist and entomologist who, in 1961, founded and served as director of the Monks Wood Experimental Station, an ecological research center in Huntingdon, England.
Split into simpler sentences: Major Kenneth Mellanby (26 March 1908--23 December 1993) was an English ecologist and entomologist. In 1961, Mellanby founded and served as director of the Monks Wood Experimental Station, an ecological research center in Huntingdon, England.