With Testosterone Rex: Myths of Sex, Science, and Society, Cordelia Fine (of Delusion of Gender fame) is at it again, this time attacking the supposedly obvious finding that biological sex causes testosterone-laden men to take more risks, be more aggressive, and in general want to subjugate the world. She counter-attacks by showing how some classic experiments were designed with obvious biases, or used statistics in frowned-upon methods (the testosterone probably made the researchers do it, right?), and in any case are now supplanted by newer, better-designed studies of animals and humans that show both sexes making similar decisions, seemingly ignoring their T hormone levels.
It’s funny and personal anecdotes are skillfully woven in, which is not a given in nerdy books. The first page features a dinner-table discussion of what to do with the family dog’s soon-to-be-removed testicles. Lovely, in my book!