Infanticide and Cannibalism

[Byzantine Prince]

Didn't you guys see the Colbert interview with that anthropologist/archaelogist? she said we lost our body hair because we started sweating and our skin became moist enough so we didn't get too hot. If you look at any monkey's skin it's perfectly dry even in the tropics. It's not like they need that fur for the cold of the equatorial climate. :P

Also I bet there are several reasons, not just one.

[ShadeHonestus]

Didn't you guys see the Colbert interview with that anthropologist/archaelogist? she said we lost our body hair because we started sweating and our skin became moist enough so we didn't get too hot. If you look at any monkey's skin it's perfectly dry even in the tropics. It's not like they need that fur for the cold of the equatorial climate. :P.

Well that's comparing apples and oranges. Its about the mechanics of dispensing heat. If you take most furry animals you'll see they have many mechanics that humans don't posses for cooling the body, panting, long thin ears, etc etc. That example you give of apes and humans appears as if its a smoking gun to dispute this theory until you study how the two operate differently within their environments. I don't really want to go into the environments and habitats of every stop along the evoutionary ladder and how their physiology adapts on each branch from the divergence from apes. Its best explained that walking upright, sweat glands, and the loss of hair allows homo sapiens to travel much much further on a given quantity of water in every environment than lets say a chimp or a gorilla.

And yes, this is one factor of a few, but this one is golden...