A "maverick surgeon" claims to have successfully put one monkey's head on another monkey's body, bringing the doctor one step closer to the first human head transplant, New Scientist reports.

The monkey with the transplanted head survived for eight days after the surgery, until the immune system rejected the head. According to White's experiments and Canavero's paper, the entire ...

Monkeys may be next in line to receive successful head transplants that enable them to survive "at least for a little while" -- possibly paving the way for future surgery on humans.