No, I do not have a breast fetish (at least not to the point where I have trouble holding down a job); over the last few years I have developed a keen interest in two important points in the evolutionary history of our species: the evolution of the first tetrapods, and the evolution of the first mammals.
Anyway, the article tells how the components of milk are very similar to anti-bacterial secretions in the normal immune system of vertebrates, and how lactation is very similar to an inflammation response.
Since this is not a debate thread, I won't gloat at how this (yes, you can hear it coming) "just-so story" is good support for evolution over creationism, however the implications are obvious, I should think.
"We must respect the other fellow's religion, but only in the same sense and to the extent that we respect his theory that his wife is beautiful and his children smart." -- H. L. Mencken (quoted on Panda's Thumb)