Two species of fruit fly found on the island of Melanesia ar…
Two species of fruit fly found on the island of Melanesia are morphologically indistinguishable. The two species share habitats but rarely interbreed in the wild. Males of both species court females from both species, but the females have a strong preference for the courting display of males of their own species. Based on this information, fruit fly courtship would be considered a form of , which occurs .