Cia Study Food Travels Average


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Cia Study Food Travels Average

Cia Study Food Travels Average

Throughout the history of evolutionary science there has existed debate as to if, and how it occurs. Even today controversy reins and new theories of the possible mechanisms driving evolution are emerging, alongside the older religious beliefs. This article provides a concise review of some of the major view points of past and present evolutionary hypotheses.

Lamarck and Evolution

Before Darwin, one of the pioneers of evolution was the French botanist Jean-Baptiste Lamarck. He observed that evolution occurred, but was unable to back up his hypothesis with evidence of a mechanism. Lamarck suggested that evolution occurred by transformation. The most common example of transformation is that of a giraffe’s neck. Lamarck believed that giraffes originally had short necks, and were unable to reach the fruit high up in trees, and therefore within one generation grew their neck and passed this on to offspring in their genes. However the mechanism he used to explain evolution was not adequate and allowed for other schools of thought to cast doubt on his theory, which is no longer regarded as correct in modern science.

Darwin

Charles Darwin, the father of modern evolutionary theory was most famous for his theory of natural selection. Natural selection is believed to be one of the main mechanisms by which evolution takes place.