Cambridge, Massachusetts, USA July 13, 2012<br />Harvard University Professor E.O. Wilson passes away December 26, 2021. Wilson was photographed in his office at Harvard on July 13, 2012.<br />Edward Osborne Wilson, usually cited as E. O. Wilson, was an American biologist, naturalist, and writer. Wilson was an influential biologist who on numerous occasions had been given the nicknames "The New Darwin", "Darwin's natural heir" or "The Darwin of the 21st century. (Rick Friedman/Polaris)