I don't claim to know, and neither does science. Science tries to figure out what rules govern the natural world, not who the "author" of those rules might be.
Evolution through the mechanism of natural selection *is* organic life behaving according to a set of natural laws. There is nothing in the theory that prevents you from believing that those natural laws were "written" by a creator. Frankly, I think you are doing the creator a disservice to shut your eyes and plug your ears to the elegant, beautiful process that is evolution.
IF he designed it that way and He says He didn't.
Misinterpreting variation within species, as species to species evolution does more than a disservice to the Creator if one attributes to *natural* causes something that never happened.
For all the evos talk about an affront to the Creator by not accepting evolution, what about the affront to the Creator by calling Him a liar when they say that He didn't create things the way He said He did?
Science tries to figure out what rules govern the natural world...
Who says?