TISSUE-ENGINEERING A FUNCTIONING PENIS: “In a unique feat of tissue engineering, scientists from Wake Forest University Baptist Medical Center have created penile erectile tissue and implanted it into male rabbits, allowing the animals to, well, go at it like rabbits. Researchers implanted scaffolds seeded with cells from rabbit penile tissue. One month later, organized tissue with blood vessels began to grow. Tests showed that the new tissue functioned like a normal penis, with normal blood flow and drainage of the veins. The rabbits even fathered offspring. The research was published today in the Proceedings of the National Academy of Sciences.”