![]() ![]() Natural selection is an important part of Darwin's theory because it explains the link between variety and species progression. ![]() His theory of evolution describes how changes in the environment lead to the emergence of new species. He presents various instances of variations that demonstrate the amazing adaptations that allow animals to live in their native settings, such as the woodpecker's beak for gathering insects, the bat's wings for flying, the porpoise's paddles for swimming, and so on.ĭarwin theorizes that minute changes within a single species, such as differences in organism size, form, and color, are connected to more significant variances found between species. What matters to Darwin about these variances is how they enable species to adapt and thrive in the natural environment. The mechanism by which this evolution takes place is natural selection.Īccording to Darwin, heredity is the mechanism that keeps variations alive by passing qualities down from parents to children. ![]()
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