It Is Easier to Clone a Human Than to Blend One With an Animal

After years of fiddling with human, mouse, rabbit, and cow cells, researcher Robert Lanza has declared that it's impossible to create human-animal hybrid embryos, but that human cloning appears to be eminently doable. Lanza wasn't trying to create some freakish chimera, nor did he intend to bring forth a squalling baby as the world's first human clone. But ever