Is South African athlete Caster Semenya male or female?

You can look at the link I've posted and see for yourself at her facial features and listen to her voice: if we're going to have a superficial perspective to this matter then, according to the link, Caster's a male. However, I saw a picture of her from a race (no, it wasn't that much of a close up, LOL) and I "saw nothing". My only guess is that "he" has got a really, really tiny "thingy" or she/he is a ; that's what I think because all that it takes is a simple look at the to see the of someone and so if doubts have been circulating for ages about Caster's gender then she's got to be a ; at his point in time, it's been reported that she'll undergo a gender verification test and if she is indeed a , the percentage of which gender gene is most dominant in Caster will be what will determine Caster's officially.