The Rat with Two Brains

Brain grows in rat thigh after transplant

TOKYO -- A team of Japanese scientists has succeeded in transplanting the brain of a baby rat into the thigh of an adult rat and growing it there, demonstrating the organ's transplant possibilities.

The experiment, led by Nobufumi Kawai and Kuniko Shimazaki of Jichi Medical School in Tochigi Prefecture, was conducted largely to see how long brain tissue can survive after its blood supply is cut. It took the team about 90 minutes to graft the baby's brain into the adult, but the organ survived and its neurological functions developed afterwards, they said. (Kyodo News)