The Fates of Nations: A Biological Theory of History

aggression aggressor agriculture American ancient animal armies armored attack babies barbarians battle breeding strategy British broad niches cannon Carthage Carthaginian caste cavalry centuries city-states civilized classes colonies conquered conquest crowded ecological hypothesis ecologist empire enemy English Europe European West expanding fighting force fought France French Genghis Genghis Khan German Greece Greek grow growth habits Hannibal hoplite horse horse archers human breeding strategy human niche ice age infanticide invented island land learned legions lemmings liberty living loot mass Mediterranean Sea military modern Mongol nations natural selection neighbors niche-space nomad nuclear number of children Persian phalanx poor population possible poverty predicts ranks revolution rising numbers Roman Roman legion Rome Russian shield wall social society soldiers Soviet Union squirrel steppes superior surplus Sweden technical technique things tion trade tribes victory wars wealth weapons