title: [Is there a trend in mankind toward feeble-mindedness? Differential fertility].
mesh_terms: D005260:Female; D005298:Fertility; D005544:Forecasting; D005828:Genetics, Population; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007360:Intelligence; D008297:Male; D011247:Pregnancy
vernacular_title: Spĕje lidstvo k slabomyslnosti? Diferencní plodnost.