There's been a lot of controversy lately about determining the sex of individual humans. Some people feel that one's sex is a mental thing that can't be determined through biological analysis. Others think that the presence of the reproductive organs that conform to the generally accepted definitions of male and female are sufficient. Some sports bodies determine sex by the level of testosterone in the blood.
Not long ago a grave from perhaps 100 BC on the British island of Bryher was opened. Oddities about the items found with what remained of the body led the archeologists to try to discover its sex. The bones were in such a state that a DNA test couldn't be made.
Instead, analyses were made of the remaining teeth and the dental peptides indicated with an accuracy of 96% that the grave's occupant was a female. So we now have an infallible means of determining sex.
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