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>>came at a terrible price on human health http://www.thelazycaveman.com/wp-content/uploads/2011/05/caveman+cartoon.jpg http://www.thelazycaveman.com/wp-conten

• graeme 13y ago
  See this chart on historical life expectancy: http://en.wikipedia.org/wiki/Life_expectancy#Life_expectancy_variation_over_time http://en.wikipedia.org/wiki/Life_expectancy#Life_expectancy... Early 20th century was also 30 years. Ancient Rome was 20-30. These expectancies were low chiefly because of high infant mortality. A life expectancy of "two days" really drags down your average. Average life expectancy is not a good measure for everyday arguments. Paleolithic average life expectancy was actually quite high relative to the historical periods that followed.