“I literally thought that my mom had taken away my penis.” That’s how Taylor Edelmann describes growing up as a girl. Seeking an outlet for his anxiety and confusion, he turned to volleyball, eventually accepting an offer at Purchase College, 30 miles from New York City, where he became a rising star on the women’s volleyball team. And then, in the winter of 2012, Edelmann switched teams -- and genders. Remarkably, players, coaches, and teachers rallied round in a textbook show of support. Edelmann was voted team captain at the end of his junior season and graduated this spring with a B.A. in psychology.