Someone better versed in biology than me can correct me if I'm wrong, but I believe in emergency circumstances, human males can lactate. By "emergency" here, I mean, mom died and there aren't any milkable mammals around. A useful fall back, and you can see why it would be evolutionarily favored: the kids don't outright starve as soon as mom's dead, and they go on to reproduce more often.
But on the other hand, I only took evangelical fundamentalist home school biology in high school.
Edit: With regard to the OP, a staunch creationist will simply point out what I just said, and say something like "Wow, isn't that an amazing *design* feature?" Pretty hard to catch creationists in that kind of trap: an appeal to design is a very easy leap.