Population  

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"In the days before Pasteur man's population was maintained approximately constant from generation to generation by a cybernetic system in which the principal feedback element at the upper limit was disease. The crowd-diseases — smallpox, cholera, typhoid, plague, etc. — are, by the ecologist, labeled "density-dependent factors," whose effectiveness in reducing population is a power function of the density of the population. No growth of population could get out of hand as long as the crowd-diseases were unconquered, which means that man did not have to sit in judgment on man, to decide who should have a cover at Nature’s feast and who should not." --Nature and Man's Fate (1965) by Garrett Hardin

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Kunstformen der Natur (1904) by Ernst Haeckel
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Kunstformen der Natur (1904) by Ernst Haeckel

A population is the number of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.

The area that is used to define a sexual population is defined as the area where inter-breeding is potentially possible between any pair within the area, and where the probability of interbreeding is greater than the probability of cross-breeding with individuals from other areas.

In sociology, population refers to a collection of humans. Demography is a social science which entails the statistical study of human populations. This article refers mainly to the human population.

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Unless indicated otherwise, the text in this article is either based on Wikipedia article "Population" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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