.".. a few Infigen employees take me out to a rolling meadow to meet some clones. When I get there, I see cows. I see cows lying down and cows standing up. I see cows that think they are pets and sprint up to me and step on my foot—and I realize that cloned cows are as heavy as regular cows.
But I also realize . . . that if there is such a thing as a cow soul, each one of these cows has a soul of its own. Cloning does not produce perfect copies. "
Wired (February 2001)