The grandfather of science, Rene Descartes, nailed his wife's dog to a board, and cut out it's heart while it was still alive, so as to 'prove' that animals don't have souls.

The Cartesian plane is great, but science has limits, those limits are God, Love, and the Golden Rule. Do unto others as you would have done unto you... If you have to hurt another to learn something, you probably don't need to know that something... God knows, and that's enough. Trust. God wins.