WebsterMark
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SuzukiSavage.com Rocks!
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Okay,.. there are few scientific theories out there, but let me give you mine.... In evolution, there is one wild card... Creatures mostly evolve in practical ways reflecting environmental adaptations... The wild card,... is sex!... Male birds have bright plumage for no practical reason other than to get nookie.... So, female smart monkeys decided for some reason, they liked less hair... Maybe their men stunk less,... maybe less fleas... or maybe they just thought it looked better... Everybody started looking for the less hairy mate, and we went with it.
Excellent thought process..... but.... following though with your thinking....
Does bright plumage jeopardize the male's survival? At the St. Louis Zoo for example, male peacocks roam the zoo free. And every now and then, they'll flare their feathers out and make their mating noise. (note: if you're not prepared for the noise, it will scare the $hit out of you....!) But, when they are done, the feathers go back down and they are return to 'normal'. Men can't shed fur and then grow it back within seconds. So, I don't think males losing fur is to attract females is why we don't have fur because we would not have survived the environment.
On the other hand, both animals and men today do incredible stupid things to get laid. We jeopardize our livelihoods and lives. Look how many men get shot when the husband comes home early......it happens. We know the risk, but we still do it. Male lions know if they pick a fight with the alpha-male, they might die, but they still do it.
But, back to the other hand, bright plumage or fighting is not the same thing as a fundamental change to our physiology.
Also, both male and female humans have no fur. In your example, only the males have the bright plumage and only the male lions fight. Why would females lose their fur and jeopardize their survival also?
Taken as a whole, good thinking, but I don't think sex is the answer. (and that is a statement I've never made my entire life.....)
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