Samuel Packer, chief of medical ethics at Northwell Health in New York.
Do we really want animals with human brains, or humans with the brains of animals, even if it might help find cures for various maladies and diseases?
Let's listen to what two dogs have to say:
Well, have you heard?
About the research that mixes human cells into animal embryos.
You've got to be kidding?
Nope. Listen to what Stuart Newman, a researcher at New York Medical College, has said:
"Let's say that we have pigs with human brains and they are wondering why we are doing experiments on them."