Thursday, December 3, 2009

If every living creature evolves because of nature. Have humans stopped evolving because of technology?

Humans have not stopped evolving. Here on earth we have come to a pause. Since we have populated all reaches of this planet and have no where else to go it seems we have stopped evolving. The various races are now intermingling and we are seeing the results of that, but that alone will not create a new species of human. If we leave and populate another planet and for some reason those pioneers run into difficulty where their earthly traits do not adopt them to the new environment then evolution will take on a new meaning. You have to understand that the environment must stress the species into evolving. It is a reaction to a cause. Let's say we have a major ecological disaster causing severe changes in our environment. Those humans with characteristics that will help them adapt to these new conditions will have the advantage over the others and their offspring will be at an advantage to replace those that cannot adapt. Evolution is change and will occur in all living things as long as they compete for environmental goods.If every living creature evolves because of nature. Have humans stopped evolving because of technology?
Not really. They still die the same way as their heart stops beating.


Evolution? In present economomy its the guy who make enough salary per week who can survive.If every living creature evolves because of nature. Have humans stopped evolving because of technology?
The time scale of evolutionary processes is in millions of years.





Civilisation is barely 10000 years old.





However some effects are already visible. Thanks to machines we have become less stout and muscled than our ancestors. Brains have grown bigger. New races (Mulatos, Anglo Indians) have emerged due to intermingling of races which were far flung geographically.





Also Astronauts who spend a long time in space experience difficulties in the simple tasks back on Earth since there bones grow weaker as there is not enough exercise for them.





That is also evolution.
No. Evolution is a result of Darwin's theory of ';Survival of the Fittest.'; This theory states that the traits passed on to future generations will be those found most desirable by the current breeding population and are best suited to the challenges presented by the current environment and living conditions. Therefore, it is not necessarily nature which causes populations to evolve, but the demand for certain traits by the environment and its population. This environment could be anything or anywhere, from New York City to the rainforests of Brazil.


In the past thousands of years, humans have gotten taller, have bigger brains, have developed different skin colors and facial traits, developed more upright posture, along with many other things. These are all results of the demands of the current environment and those seen preferable by the mating population, not just nature (nature being ';the wilderness';).
Not necessarily. It could be that our technological environment may change the direction that our future evolution will take.

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