You’ve probably heard the story of Austrian monk Gregor Mendel who experimented with the breeding of wrinkly peas, but whose research was unfortunately ignored for decades after Darwin until their insights were synthesized together in the twentieth century. What you probably haven’t heard is the allegation dating back to R. A. Fisher that he faked his data. Everyone uses his insights, if not the exact values of all his estimates, so not surprising that gets dropped down the memory hole. The page linked from there quotes some authors saying “[F]or the moralist, no distinction can be made between an Isaac Newton who lied for truth and was right, and a Cyril Burt who lied for truth and was wrong””, which I found amusing because I’d always heard that Burt’s heritability estimates match up fairly well with modern twin-adoption studies.