Don't get it (Re: Ape to Man - where did the hair go?)

pbaylisConcerning the ability of humans to compete in the world of nature please ask yourself how far and how fast would you run if your one and only option was to be eaten? You seem to scale your everyday level of fitness to that of someone who depends only on himself to provide for food and shelter and all the necessities of life with only the natural world to provide the means by which this is accomplished. I have myself lived off the land and you can bet that your fitness level follows a steep curve. Try following a trap line or construct your own shelter or skin a deer and see for yourself.As for this statement. This is a non-issue since there are even fewer animals that run 100 Km per day.

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"We cannot define anything precisely! If we attempt to, we get into that paralysis of thought that comes to philosophers, who sit opposite each other, one saying to the other, 'You don't know what you are talking about!' The second one says 'What do you mean by know? What do you mean by talking? What do you mean by you?', and so on."

This is probably out in left field but could our ability to use fire have any bearing on affecting our amount of body hair? The greater the amount of body hair the greater the likelihood of burns and infections in a time when antibiotics were not a common item.Death due to infection would result in selection pressures upon the population if it could be argued that they would perish before reproducing. I do not know enough about the use of fire by early man to tell if this was a possibilty.