BACKGROUND: Darwin illustrated his sexual selection theory with male and female morphology of diving beetles. but maintained a cooperative view of their interaction. Present theory suggests that instead sexual conflict should be a widespread evolutionary force driving both intersexual coevolutionary arms races and speciation. METHODOLOGY/PRINCIPAL FINDINGS: We combined Bayesian phylog... https://macorners.shop/product-category/engraved-mama-bear-necklace-gift-box/