In a message dated 5/7/99 10:17:18 PM Pacific Daylight Time,
[log in to unmask] writes:

<< We, for whatever reason, evolved to do this, we have that
 advantage...somewhere,
 somehow, our DNA felt the pressure to adapt to milk >>
The DNA feels no pressure to adapt. The mutatuions are all random. When, by
chance, a favorable change  occurs the bearer of that change is at an
advantage of some type. The more favorable genetic material is then passed
along, with all the rest, to the next generation.