Then why do males have nipples?

Why do animals, taken from the wild, and made into every possible hybrid imaginable, always revert back to their original state...when left alone?

Why aren't there thousands of species of intermediates, with scales, feathers and fins (actually there should be billions)?

Why does every crossing of species only take place by the hand of man, but not in the wild?

Why does every hybrid species only produce a sterile/infertile mutation that soon does out?

Why do they say it takes billions of years for a creature to go from a water-based life, with fins and gills, to a land-based one, with legs and lungs...when a certain species of frog in Africa can do it in 4 days?

Why is the DNA of a rattlesnake closer to that of humans than a chimpanzee?

Why is the smartest species of animal a bird, and not an ape?

If intelligent-design creationism is impossible, then where did the idea of God come from?