Now that's not necessarily true here. I agree with your argument actually, but as someone who believes in both science and God, I see a little different picture. I'm not crazy, I know that our emotions we feel are caused by hormonal and chemical changes in our body in reaction to sight, scent, movement, color, sound, etc. I believe that humans have instincts as well, and honestly, without being an animal how can we know that a human's feeling of just wanting to ah..."Mate" with the next hot babe he sees is that much different than the chemicals and instincts telling the same thing to a snake or a dog! I think it's far less advanced, but instincts and hormones create some sort of effect on an animal, and how it is interpreted in their mind is unknown to us!
But just cause I believe in God doesn't mean I believe animals are mindless..."God is Love" and all that!