Like father like son
نویسنده
چکیده
The natural environment is in a state of constant flux and living organisms are perpetually challenged to adapt to these changes. Yet the mechanisms of adaptation, which lead to the development of new characteristics or behaviours, have troubled philosophers and scientists since the days of ancient Greece. In fact, it was not until 1859, when Charles Darwin (1809– 1882) published The Origin of Species that part of the puzzle was solved. Darwin developed his theory of natural selection to explain the enormous diversity and adaptability of living organisms. He theorized that organisms of the same species develop subtle differences in their phenotypes that make them more or less able to survive and reproduce, and that those differences, which improve survival and reproduction, are passed on to future generations.
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