A head transplant doctor claims to have made advance toward realizing the medical procedure, but the scientific community remains skeptical. The team claims to have used a proprietary “glue” to repair the severed spines of rats and achieved full recovery.

Sergio Canavero, a man who has made the goal of his life’s work to transplant a human head onto a donor body, is claiming a success. He and his team have reported seemingly positive results from a technique called the Gemini Protocol. They used the protocol to repair severed spinal cords in rats, and their findings indicate that their methodology works “across the board.”