Gender row athlete: What is intersexuality?

The case of South African athlete Caster Semenya has sparked worldwide interest following reports that she will be tested by sporting officials to determine whether she is male or female. ...the IAAF are testing to see whether Semenya has a rare genetic disorder that means she has female genitalia but male chromosomes.
Check out Intersexuality and How Sex is Determined for the genetic explanation of XY females.

The default of all human beings is female
"If you are insensitive to androgens, you will grow up looking like a girl because the default of all human beings is female. However if the body, when it's developing, is not guided into turning into a male, then it will always be female."

Caster Semenya: Intersection of Intersexuality and Eunuchs
For more than half a century it was common for doctors to carry out reversal operations, either through castration [known as castrated Eunuchs, check out Eunuchs of the Sun (Jesus on Homosexuality and the Third Gender and Eunuchs, Hijras, the Third Gender and the Bible] or constructing a new vagina, on babies whose genitals were seen as either too big or too small.

The Nobodies

Beware of the Nobodies, the wanderers and the lost souls. The beings without hearts searching for somewhere to belong.
Organization XIII (XIII機関, Jūsan Kikan?) is a fictional group of characters featured in Square Enix and Disney Interactive Studios' Kingdom Hearts video game series. Kingdom Hearts is a crossover of various Disney settings based in a universe made specifically for the series. The group is comprised of thirteen Nobodies, or beings without hearts.
Source: Wikipedia

Eunuchs of the Sun (Ancient Homosexuality and the "Third Gender")

Jesus on Eunuchs of the Sun (Homosexuality and the "Third Gender")
"12For some are eunuchs because they were born that way [EUNUCH OF THE SUN]; others were made that way by men; and others have renounced marriage[c]because of the kingdom of heaven. The one who can accept this should accept it."
Source: Matthew 19:12

Two Types of Eunuchs
"The two types of eunuchs undoubtedly represent a standard categorization. According to the rabbis there were two sorts of eunuchs, those of human device and those of nature's making (cf. m. Zab. 2.1; m. Yeb. 8.4; b. Yeb. 75a, 79b). The first type was spoken of as being seris adam, literally 'eunuch of man.' The second type was spoken of as being seris hamma, literally 'eunuch of the sun', that is, from the first seeing of the sun, a eunuch by birth (b. Yeb. 79b, 80a; cf. Eusebius, H.E. 7.32).

"The 'eunuch of the sun' was one who had been born with defective male organs or one who had otherwise been rendered impotent by circumstances of his birth."
Source: Matthew 19-28 by Davies, Dale C. Allison