be khe on Flickr The day when pigs fly might not be as far ahead of us as the day when humans first flew is behind us. The real question might be, will humans create a flying pig or will pigs create their own method of flight. The following are realities: Chinese scientists at the Shanghai Second Medical University in 2003 successfully fused human cells with rabbit eggs. The embryos were reportedly the first human-animal chimeras successfully created. They were allowed to develop for several days in a laboratory dish before the scientists destroyed the embryos to harvest their stem cells. In Minnesota last year researchers at the Mayo Clinic…