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Thread: Did we slow or stop our physical evolutionary possess by overpopulating? s

  1. #1 Did we slow or stop our physical evolutionary possess by overpopulating? s 
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    Geneticist have proven that evolution can be accelerated usually in small isolated communities with a more controlled form of breeding.
    so with our new forms of global transportation and communication is it possible that we as a species reached our peak in terms of physical change?
    it seems like most of our progress is now measured in the complexity of our tools or understanding of the laws of physics.

    so i guess my question is would our species even benefit from physical mutation in a natural selection/ survival way?


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    ▼▼ dn ʎɐʍ sıɥʇ ▼▼ RedPanda's Avatar
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    Quote Originally Posted by Alex_kane View Post
    so i guess my question is would our species even benefit from physical mutation in a natural selection/ survival way?
    If the physical mutation produced (e.g.) an immunity to cancer, then yes.


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    so with our new forms of global transportation and communication is it possible that we as a species reached our peak in terms of physical change?
    Who says we're not changing now?
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    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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    Quote Originally Posted by Alex_kane View Post
    so i guess my question is would our species even benefit from physical mutation in a natural selection/ survival way?
    Like was said if the mutation was beneficial in some way, ya of course we would benefit from the mutation. We wouldn't all benefit, only those with the mutation.In my opinion the reason our evolution has seemingly slowed is because pressure from natural selection is severely reduced in developed nations. People with bad genes are allowed to survive due to advances in medicine and technology. These people then go on to reproduce, polluting the gene pool. This doesn't affect the rate of mutation though.Isnt the idea of evolution that mutations that are beneficial aid the organism in surviving allowing them a better chance of reproduction and therefore are more likely to pass on those beneficial mutations. Any mutation that caused a health issue would result in less of a chance of that organism reproducing.It could be possible that we have increased the rate of mutation as our exposure to mutagenizing agents has increased. Along with the rate of cancer. No doubt in my mind, we are still subject to natural selection.
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    My rugged good looks; my sparkling personality; my extraordinary intellect; and my capacity for self delusion - all contribute to my evolutionary success. Selecting me is only natural.
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    People with bad genes are allowed to survive due to advances in medicine and technology. These people then go on to reproduce, polluting the gene pool.
    What on earth is a bad gene? Fair skin that creates and absorbs vitamin D readily but is susceptible to skin cancer in sunny climates and the capacity to store fat against the possibility of food shortages are two genetic traits that have served certain populations well in the past, but they're distinctly unwonderful when (some of) those populations find themselves in different environments now. Should we find ourselves facing extensive food shortages, all those people now trying to avoid type 2 diabetes originating from a modern diet will have a pronounced advantage over the rest of us.

    I happen to have a distinctly disadvantageous genetic abnormality that limits my lifestyle a bit - but it hasn't shortened the life of anyone in my family, let alone prevented anyone from reproducing.
    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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    our cells are mutating constantly.

    for op:
    http://lmgtfy.com/?q=hi+i%27m+op+and...about+genetics
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    we never stop evolving. Technology, is just an other parameter.

    There is even something called sympatric speciation
    Sympatric speciation - Wikipedia, the free encyclopedia

    So we could even speciate, without physical separation....
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    The notion that evolution has slowed, or halted because of technological and cultural controls, reflects the poor understanding of the nature of evolution by a majority of the population. Evolution involves the change in alleles in a population. If, through the applicaiton of medicien and technology, people live to reproduce today who would have died in former times, then the proportion of alleles in the population changes. That is evolution. It is rampant at present.
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