Scientists Give Human Organs to Lamb
TK Interior writes "Myrtle Beach Online reports the existence of a lamb-human chimera-- a blend of two different species. Not only has a lamb been given a human liver and heart, but mice are sporting human brain cells. At what level is a chimera 'too' human? Where do you draw the line between human and animal? How will this affect evolution?"
In science, an animal is a chimera if the cells throughout the animal are from two different animals. This is accomplished by mixing the zygotes (see the geep). You don't get a chimera through organ transplant.
-Colin