With homo sapiens sapiens entering the picture, the rules of the game has changed from survival of the physically fittest to survival of the physically and mentally fittest. Our brains have compensated for what we lacked in physical capacity. The weak can now survive along with the strong due to our technological advances. It has also brought about a host of new problems in evolution. Our technology for example has hastened the evolutionary process of some species due to changes in our global environment. Animal Habitat affected by the by-products of our technological advances have lead to gradual extinction of some species. But some have learned to adapt and may be evolving even as we speak possibly because of our technology. Viruses for one have evolved over the few decades becoming more virulent and resilient. And if the predictions of scientists become true and our technology finally advances to the point where colonizing other planets become possible, the next generations that travel through space might just see an evolution in physiology as well. In conclusion, while some facets of Darwin's theory has been challenged, overall, the basic principle of struggle for existence and survival of the fittest still holds true. After all, what is life without struggle, but d3ath.
2007-04-11 04:04:59
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answer #1
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answered by Shienaran 7
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I think that Darwin's theory simply suggests that survival is necessary for reproduction (the ultimate goal, biologically speaking). Those that don't survive, don't reproduce. Those that do survive, pass on whatever advantages they may have had. Interestingly, in a biological context this theory may be refuted by the same folks who would support it in a social context (which we call capitalism... those who have money, make more money, and pass on money-making advantages such as education and social connections to their children). Or, in still another context, we can talk about technological development; a dozen people invent mousetraps, but the one whose mousetrap is most efficient eventually sticks around to refine his/her product into mousetrap 2.0 while the other inventors end up throwing in the towel. In simple terms, you go with what works, always refining and making things a little more efficient. The thing that was probably so radical about Darwin's reasoning was that he proposed that efficiency becomes self-selecting, without need for an intelligence to guide the process. These days, we would understand this as a simple matter of a feedback loop, a self-correcting process.
2007-04-11 15:25:30
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answer #2
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answered by cherochap 3
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Darwin's theory makes as much sense today as ever. The strongest survive by adapting to their environment and are able to pass on their genes to the next generation and the weak die off. The thing that has changed is medical science has provided a way for more and more humans (who are not among the fittest) to survive. Also our improved environments have greatly increased the average number of years people live.
2007-04-11 02:45:19
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answer #3
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answered by Anonymous
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Could you elaborate on the current scenario? I know that in Hawaii a specific bird lost it's main food source, a type of flower. The bird has adapted and now lives off other flowers but the average beak size has decreased. I'd say that was evolution in action.
2007-04-11 01:58:41
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answer #4
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answered by Sharon M 6
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