To citeanothersadexample: insouthernFrancea group of Albigensianvegetarians (a Cartharistreligiousgroup) were put to death byhanging in 1052 becausetheyrefused tokill a chicken!
Anotherexample in addition to those you cite in your post is that the corpus callosum (fibers that connect the two hemispheres in the brain) tends to be thicker in women than in men.