Genetically engineered pigs are almost ready for use as sources for organs to be transplanted into humans [1]. It's just one extra step to transplant the head t

Genetically engineered pigs are almost ready for use as sources for organs to be transplanted into humans [1]. It's just one extra step to transplant the head to the pig... [1] http://www.sciencemag.org/content/340/6140/1509.summary http://www.sciencemag.org/content/340/6140/1509.summary