If you can't think of an observation that could disprove a theory, that theory simply isn't scientific.
Jerry A. CoyneCan a geology teacher blithely tell his students that the earth is flat, or a European history professor that the Holocaust didn't happen? That's not academic freedom, but dereliction of duty.
Jerry A. CoyneA well-understood and testable hypothesis like sexual selection surely trumps an untestable appeal to the inscrutable caprices of a creator.
Jerry A. CoyneWe now have many of the answers that once eluded Darwin, thanks to two developments that he could not have imagined: continental drift and molecular taxonomy.
Jerry A. Coyne