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Author | Topic: How Evolution changed humans’ appearance | |||||||||||||||||||||||||
RAZD Member (Idle past 1434 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Curiously, replacing motherx with fatherx and vice versa in your argument results in one that is just as (in)valid and just as (un)persuasive. Selection of a "pretty" male is as likely to add "beauty" to a lineage as selection of a "pretty" female ... unless you could demonstrate that female beauty traits are only found on the X chromosome and would somehow be unavailable to males (good luck with that) ... of course the existence of "pretty" traits in men invalidates this.
Selection appears to be both male and female, as both sexes have traits that have been affected by selection by the other sex. This is not explained by either all (only) male or all (only) female selection Sexual selection is still operating ... btw ... on both sexes. Changes are still occurring. You also really need to consider what is being selected and why ... Enjoy Edited by RAZD, : No reason given.by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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RAZD Member (Idle past 1434 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Yes, let's start with early Homo sapiens ...
... I must try to find some evidence that 200,000 years ago, MotherOne "would be far more similar to Miss World than to the other Great Apes". ... http://www.sciencedaily.com/...ases/2005/02/050223122209.htm
quote: also Ethiopia is top choice for cradle of Homo sapiens : Nature News This article is from before the date revision/update http://www.berkeley.edu/.../releases/2003/06/11_idaltu.shtml
quote: In my learning mode, ... Perhaps my hypothesis might have been more credible if I had placed MotherOne some time earlier when she would have been one of the species which later led to both humans and chimpanzees - from my limited memory, was it homo erectus?. Homo erectus may be a side branch like Neanderthals (Homo neander) and our previous ancestors appear to be Homo ergaster ... see http://www.handprint.com/LS/ANC/evol.html for starters You have a lot to learn, and it might be a good idea to start with that before making hypothesis ... Enjoy Edited by RAZD, : added infoby our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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RAZD Member (Idle past 1434 days) Posts: 20714 From: the other end of the sidewalk Joined: |
I must emphasize that my hypothesis was based on a single unbroken lineage from MotherOne to Miss World. ... there is a single unbroken lineage from primordial ooze to each living creature and many extinct ones.
... I believe that in the enormous time between the births of these two women, huge changes occurred in their relative appearance and it is interesting to conjecture what could have caused the changes. Other than superficial differences the major measurable change from Homo sapiens of 195,000 years ago to Homo sapiens sapiens (us) is an increase in brain size (selection is still ongoing - see M and N below). For more distant changes you need to go further back in time (which also means more time for evolution to operate). See 29 Evidences for Macroevolution: Part 1
quote: (note that the first skull is a modern chimpanzee and that changes to the skeletons are not shown).
When we became more civilized, when food supplies were established and living conditions were not geared mainly to survival, then Motherx may have had time and inclination to devote to other things ... It wasn't until about 10,000 years ago when the agricultural revolution made surplus food available in sufficient quantities that leisure time for other pursuits became possible. The emergence of culture apparently only started some 50,000 years ago, when dolls and flutes are found. It is kind of difficult to ascertain from skeletons what people looked like, however we do see that the early doll figurines of "earth mother" showed a wide waist and large breasts. Mother goddess - Wikipedia
quote: Again this shows sexual selection ...
Please be aware that I am searching for a reasonable explanation of the change. Let me know if you have your own explanation. Sexual selection in general, and Fischerian runaway sexual selection in particular are more than sufficient to explain the evolution of humans from early ape ancestors. Beauty is how sexual selection affects us, it is not an aspect of our species that is special compared to other species -- each species would have a concept of "beauty" that would be based on selection for mating. Enjoy.by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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RAZD Member (Idle past 1434 days) Posts: 20714 From: the other end of the sidewalk Joined: |
... Recent discoveries have shown that people were carving abstract images, creating pigments and making jewellery in southern Africa almost as early as 100,000 years ago. Good to know. I thought th 50k seemed off, but it was noted in two sources I looked at.
Controversial evidence that Neanderthals had artistic traditions may mean we have the push the advent of modern-like culture back a lot further than that. Which is part of the controversy on whether there was any "social" interaction between Cro-magnon and Neanders. As I recall a flute and a doll were involved in the controversy being found in what appeared to be Neander burial. Enjoyby our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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RAZD Member (Idle past 1434 days) Posts: 20714 From: the other end of the sidewalk Joined: |
... An outstanding competition for females is the Miss World competition for beautiful women from around the world. The winner of a Miss World competition must be considered near the pinnacle of female beauty. Don't know if you have been following the latest discussion on Sexual Selection, Stasis, Runaway Selection, Dimorphism, & Human Evolution, but I posted this in Message 97:
Mannequins Give Shape to a Venezuelan Fantasy - The New York Times
quote: This demonstrates (to me) that the perceived "ideal" beauty is outside the available genotypes, and this demonstrates (to me) that we are seeing Fisherian Runaway Sexual Selection. Note that both sexes are involved with pursuing this perceived "ideal" -- men, by finding the women attractive, and women, by altering their appearance to be closer to this "ideal" ... Enjoy.by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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