First readers of my speculatIve medical thriller, THE LIFE AFTER LIFE CONSPIRACY, questioned the real-world likelihood of implanting the brain cells from a human fetus into Chimp Donnie. "Too far out!" they said. "Probably too far out even for a Michael Crichton thriller.")
Well, now the future far-out is happening, and happening in the real-world, not just in my thriller. I could cite several reports on how human brain cells have been implanted in the brains of both humans (and animals, earlier, to test the procedures). The aim is to treat conditions including stroke, Parkinson's, tumors, Traumatic Brain Injury, and ALS (Lou Gehrig's Disease).
Here's one news report to get you started: London Guardian: Stem cells transformed into brain cells to treat Parkinson's disease
PLOT ADVISORY re: THE LIFE AFTER LIFE CONSPIRACY: The experimental implantation of brain tissue as done by Dr. Daulby (with the assistance of Chimp Donnie) is not performed for any of the treatment purposes mentioned above.