Charles Darwin Theory of Evolution

Charles Darwin theory of evolution was all about survival of the fittest.

Charles Darwin (1809-1882) made a few main observations:



Charles Darwin on the Galapagos Islands
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* If all individuals reproduced successfully, the population sizes within all species would increase exponentially.

* Except for seasonal differences, population sizes remain constant.

* Resources (food, habitat etc) are limited.

* Individuals within a population vary - some are more successful than others.

* This variation is often heritable.

And because larger populations than the resources can support lead to struggle, he concluded that those individuals whose inherited characteristics suit their environment better than others are likely to leave more offspring than the less suited individuals.

This is the theory of the survival of the fittest, which over the time will lead to a gradual change of the population, towards individuals that are better suited to their environment.

Down House, the Home of Charles Darwin
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     Library Study of Famed Naturalist Charles Darwin
      Study. Poster by AllPosters. Click on thumbnail to buy Joseph Hooker (1817-1911), Charles Lyell (1797-1875) and Charles Robert Darwin (1809-82)
     Poster by AllPosters. Click on thumbnail to buy Hms "Beagle" the Ship in Which Charles Darwin Sailed in the Straits of Magellan
     HMS Beagle. Poster by AllPosters. Click on thumbnail to buy Charles Darwin Sails Towards the Galapagos Islands
    On the way to Galapagos. Poster by AllPosters. Click on thumbnail to buy Charles Darwin and His Wife at the Piano
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