Patricia Brennan, a biologist, specializes in anim...  ...erican. It includes a lengthy exploration of duck vaginas , which are the most diverse vaginas among birds. The typical duck vagina is a "penis...

(Photo of vaginal scaffold by Dr. Yuanyuan Zhang)M...  ...at Wake Forest Baptist Medical Center grew human vaginas in a laboratory setting, then successfully implan...  ...s. More than 8 years after the transplants, those vaginas are fully functional.The researchers led by Dr. A...