The Direction of Human Evolution

adaptations amoeba ancestors animals and plants autocracy believe biological body breeds causes changes characters chromosomes civilization classes colony combinations complex condition conflicts course of evolution Cro-Magnon democracy democratic descendants differentiation disharmonies earth elimination emotions environment equality eternal ethical evidence existence experience fact fitness freedom future germ cells germplasm greatest hereditary heredity higher human evolution human race human society hybrids ideals increasing individual inheritance instincts intellectual evolution intelligence lead liberty ligion limits lines living world mammals means Mendelian inheritance ment mental millions mind modern moral mutations nations natural laws natural selection Neanderthal origin parents past evolution perfect persons physical population possible present primitive principles probably progressive evolution protoplasm races of mankind racial reason religion result scientific selfishness social evolution specialization and co-operation species struggle subraces supernatural teleology things tion to-day traits tropisms true types universe white race whole