Testard C, Brent LJN, Andersson J, Chiou KL, Del Valle JENegron-, DeCasien AR, Acevedo-Ithier A, Stock MK, Antón SC, Gonzalez O, et al. Social connections predict brain structure in a multidimensional free-ranging primate society. Sci Adv. 2022;8(15):eabl5794.