National Geographic Channel - September 15, 2009 - 10 PM
It does not seem like a question that should be asked. You know who you are. Or do you? Each year thousands of people around the world are born with ambiguous gender. They do not fit into our binary system of male or female - and shockingly many of them don't know it. Early surgeries transformed their bodies; families and doctors hid the truth. Now, their stories are starting to be heard. In this hour, Explorer examines the science of gender...and the gray areas in between. From scientists and medical professionals to individuals whose lives are affected, we search for answers, even looking to the lives of other animals for clues.