Lamarck's Ideas On Polar Bear Evolution

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Lamarck’s ideas on polar bear evolution
Lamarckism can be used to explain the evolution of polar bears from brown bears, specifically skin and fur color. Lamarck’s theory stipulated that a characteristic (brown or white fur color) which is used more by an organism will become stronger. One that is not used disappears eventually. Change occurs when polar bears want to change. If a polar bear’s phenotype changes during life in order to adapt its environment, those changes are passed onto its offspring. Therefore, these changes are inherited, meaning that the stronger characteristics (brown fur) are passed down to many generations. As a result of this, the less effective characteristics (white fur) will be slowly reduced in frequencies and stronger

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