What can be the next stages of human evolution?
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There is a conception that evolution is driven by environmentally-mediated differential death rates choosing winners and losers among the genes swooshing around in the human species.
What is happening now with humans is unusual but by no means unheard of. The traditional environmental killers (trauma, infection, childbirth, war) are at all time lows due to improvements in medical science and politics. While events like WWI and WWII had localized impacts on, eg, the prevalence of tall men in parts of Europe, on the whole the human race is undergoing a period of growth and, commensurately, diversification of genes. This is particularly obvious in sport, where there is steady improvement evidencing further and more frequent instances of extreme individual variation.
In particular, all sorts of genes that may have been slightly maladaptive in the past are now not huge issues, while other genes that were very important to reproductive success in the past are perhaps less important now.
In a million years, it might be possible to look back and identify which new strand of humanity emerged, if we are unfortunate enough to go through a period of diminishing population. Although, in such a case, humans would probably “regress” or “resume” their ancestral gene distributions pretty quickly.
Failing that, it seems likely that within the next few generations, much racial boundaries will be filled in by people moving around and selecting partners who are not geographically, and thus genetically, collocated.
There is one other factor in human evolution is intentional modification. We’re still at the very forefront of this trend, but there is no reason to doubt that the future of the human genome will be, very much, designed rather than evolved. Ideally, this will see us (rich AND poor) live longer, happier, healthier lives and perhaps even encourage longer term thinking about how to live in our world in a sustainable way.
Hope this answer will help you..《《
There is a conception that evolution is driven by environmentally-mediated differential death rates choosing winners and losers among the genes swooshing around in the human species.
What is happening now with humans is unusual but by no means unheard of. The traditional environmental killers (trauma, infection, childbirth, war) are at all time lows due to improvements in medical science and politics. While events like WWI and WWII had localized impacts on, eg, the prevalence of tall men in parts of Europe, on the whole the human race is undergoing a period of growth and, commensurately, diversification of genes. This is particularly obvious in sport, where there is steady improvement evidencing further and more frequent instances of extreme individual variation.
In particular, all sorts of genes that may have been slightly maladaptive in the past are now not huge issues, while other genes that were very important to reproductive success in the past are perhaps less important now.
In a million years, it might be possible to look back and identify which new strand of humanity emerged, if we are unfortunate enough to go through a period of diminishing population. Although, in such a case, humans would probably “regress” or “resume” their ancestral gene distributions pretty quickly.
Failing that, it seems likely that within the next few generations, much racial boundaries will be filled in by people moving around and selecting partners who are not geographically, and thus genetically, collocated.
There is one other factor in human evolution is intentional modification. We’re still at the very forefront of this trend, but there is no reason to doubt that the future of the human genome will be, very much, designed rather than evolved. Ideally, this will see us (rich AND poor) live longer, happier, healthier lives and perhaps even encourage longer term thinking about how to live in our world in a sustainable way.
Hope this answer will help you..《《
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