An estimate of the total number of humans who have ever lived was prepared by Carl Haub of the nonprofit Population Reference Bureau in 1995, and was subsequently updated in 2002 and 2011; the 2011 fi ...
It is estimated that the world population reached one billion for the first time in 1804. It was another 123 years before it reached two billion in 1927, but it took only 33 years to reach three billi ...
Population by continent Continent Density(inhabitants/km2) Population(millions, 2013 estimates) Most populous country Most populous cityAsia 96.4 4,298 China (1,361,000,000) Japan Greater Tokyo Area ...
Types of territories Capital territoryFederal territoryOverseas territoryUnorganized territoryTerritories by country Main category: Territories by countryTerritories of AustraliaTerritories of CanadaT ...
The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. The list also includes but does not rank unrecognized but de facto independent count ...
Offspring of biologically related persons are subject to the possible impact of inbreeding, such as congenital birth defects. The chances of such disorders is increased the closer the relationship of ...
Main article: Warder Clyde AlleeAlthough the concept of Allee effect had no title at the time, it was first described in the 1930s by its namesake, Warder Clyde Allee. Through experimental studies, Al ...
Extinction vortices are a class of models through which conservation biologists, geneticists and ecologists can understand the dynamics of and categorize extinctions in the context of their causes. De ...
Human evolution is characterized by a number of morphological, developmental, physiological, and behavioral changes that have taken place since the split between the last common ancestor of humans and ...
The term "organism" (from Greek ?ργανισμ??, organismos, from ?ργανον, organon, i.e. "instrument, implement, tool, organ of sense or apprehension") first appeared in the English langua ...
Volume number density is the number of specified objects per unit volume:n = \frac{N}{V} ,whereN is the total number of objects in a volume V.Here it is assumed that N is large enough that rounding of ...
As of today's date, the world population is estimated by the United States Census Bureau to be 7.209 billion./7185 million The US Census Bureau estimates the 7 US billion/7000 million number was surpa ...
