An ecological network depicting the pattern of shared parasites by primates species. Each node represents a primate species. The links among nodes depict shared parasites (i.e., two nodes are linked whenever they share a parasite species). Primates in the center of the network share more infectious diseases with humans. From: GÃ³mez, J. M., Nunn, C. L., & VerdÃº, M. (2013). Centrality in primateâ€“parasite networks reveals the potential for the transmission of emerging infectious diseases to humans. Proceedings of the National Academy of Sciences, 110(19), 7738-7741.