In this episode, Sarah Blossom (’22) takes us on a journey through space as she tries to answer the question “are men from Mars and women from Venus?” Sarah teaches us about the concept of sexual dimorphisms in the brain: the idea that there are small but measurable sex differences in the average size of some brain structures. How do hormone surges during development lead to these differences? And what, if anything, can this tell us about differences in behavior? You won’t want to miss Sarah’s clear explanations!