Do We Need More Than Two Gender Designations?

Source: BBC News - Top HeadlinesA growing number of people refuse to be put into male or female categories, either because they do not identify as male or female, or because they are going through transition to the opposite gender. Germany, Australia, Nepal and Pakistan now offer a third gender option on official forms with other countries set to follow suit. And scientists are finding more evidence to suggest that even biological sex is a spectrum.