I am kind of curious... what is the creationist belief for why male mammals have nipples. In evolution, it's obvious - since both males and females of sexually dimorphic species are drawn from the same basic plan which diverges during early gestation, there is selective pressure not to waste energy developing a useless feature, but no selective pressure would cause the body to deliberately rid of them. However, I would expect that a designer would have the foresight to simply set the split point between genders earlier - surely he is capable of doing something like that.
Why have vestigal features? Likewise, why have the border between the sexes be so weak (such that in-betweens only take fairly minor mutations to occur, etc), if he is so concerned about specific roles for men and women?
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"Illuminant light,
illuminate me."