http://en.wikipedia.org/wiki/Population_growth From Wikipedia, the free encyclopedia The estimated size of the human population from 10,000 BCE–2000 CE. In biology, population growth is the increase in the number of individuals in a population. The population growth…
http://en.wikipedia.org/wiki/Projections_of_population_growth From Wikipedia, the free encyclopedia World population estimates from 1800 to 2100, based on “high”, “medium” and “low” United Nations projections in 2010 (colored red, orange and green) and US Census Bureau…
Human sex ratio http://en.wikipedia.org/wiki/Human_Sex_Ratio#Gender_imbalance From Wikipedia, the free encyclopedia Map indicating the human sex ratio by country.[1] PINK – Countries with more females than males. GREEN – Countries with the same number of males…