'Mean Girl' Meerkats Can Make Twice as Much Testosterone as Males Their unusual hormone levels fuel their bullying behavior, but at a cost.
Your Fingers Show Your Athletic Potential and Anxiety, According to Neuroscientists By comparing your index and ring fingers, a neuroscientist can tell if you are likely to be anxious, or if you are likely to be a good athlete.
Do Men Really Have a Better Sense of Direction Than Women? In a new study, women who were given a drop of testosterone performed better on navigational tests.