world population

Ten Things to Know About the World’s Population

Population density (people per km2) by country.Population density (people per km2) by country. Based on Wikipedia's list of countries by population density, April 2014.

The population of the Earth has grown and changed long before we were taking scientific records of the development of the human race. The migration of early humans continues to be studied as more and more evidence is discovered that gives us a clearer picture of what life was like […]