Opinion

To understand biological sex, look at the brain, not the body

Jennifer Finney Boylan is a professor of English at Barnard College of Columbia University and a fellow at Harvard University’s Radcliffe Institute for Advanced Study. Her most recent book is “Mad Honey,” co-written with Jodi Picoult.

There they are, in their Chevrolet Colorado, five dudes bouncing up and down as the truck grinds through the rugged American high country. Two guys up front, three in the back. Shania Twain is blasting. The fellow in the middle is singing along. “Oh, I want to be free, yeah, to feel the way I feel. Man, I feel like a woman!”