(Well, that certainly proves that little theory wrong, doesn't it Saucy? [img]smilies/wink.gif[/img])
I don't presume to know the nuances of evolution in Middle-earth, so I will try to apply some of the principles of human evolution here on Earth to this particular situation. Most of the time, a creature evolves when there is a change in its environment, and its initial "body" or "qualities" weren't completely suitable to survive comfortably in that new environment. If the reason for Hobbits having hairy feet is that they lived in cold weather, then they would have had narrow, beak-like noses, would have been probably a wee bit taller, and would have probably had hair all over their bodies (not just their feet) to help protect them from the cold.
The other possibility is that Hobbits were just a sort of "freak of nature," and that they just, sort of, well... happened.
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But Melkor also was there, and he came to the house of Fëanor, and there he slew Finwë King of the Noldor before his doors, and spilled the first blood in the Blessed Realm; for Finwë alone had not fled from the horror of the Dark.
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