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why could extinction be viewed as natural slection

2007-02-20 10:26:18 · 3 answers · asked by Buddy 2 in Environment

3 answers

because the animal with the crappy gene is less likely to survive and will die off. Extinction is a way of nature making a selection of what trait it doesn't want to continue.

2007-02-20 10:29:09 · answer #1 · answered by Anonymous · 1 0

Extinction could be viewed as natural selection the same way that becoming wealthy causes you to be poor - it doesn't make sense. Natural selection is a process that acts on individuals, based on individual traits. Extinction is a process that actions on populations, based on circumstances external to the species. The two processes are mostly unrelated because an individual cannot propagate 'bad' traits that would lead to extinction.

Natural selection favors traits that result in higher numbers of offspring. Natural selection generally reduces the probability of a species becoming extinct. However, natural selection doesn't ensure that a species will always be suitably adapted to its environment if the environment suddenly changes. Extinction is a process external to a species. It doesn't matter how successful a species becomes through natural selection, it can still go extinct. The passenger pigeon was one of the most numerous birds in North America - pretty good score on the evolutionary charts - but it became extinct because of hunting and urban development.

2007-02-21 03:26:24 · answer #2 · answered by formerly_bob 7 · 0 0

Darwin's theory, was that the stupidest would be unable to reproduce because they would die of young.

2007-02-20 10:36:09 · answer #3 · answered by Old guy 124 6 · 0 0

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