Swallowtail butterfly from the other butterfly families are: Swallowtail butterflies practice Batesian mimicry, a behavior in which the butterflies' appearance closely resemble that of distasteful species that prevents predation. Swallowtails differ from many animals that practice mimicry. The tiger swallowtail butterfly ("Papilio glaucus"), exhibits a female-limited polymorphism for Batesian mimicry and others, such as the Canadian tiger swallowtail ("Papilio canadensis") do not display any form of mimicry. Predators include the red-winged blackbird, Pennsylvania firefly, five-lined skink, green darner, goldenrod spider, Chinese mantis, fiery searcher, and striped skunk. Not all individuals in some species are identical in appearance. For example, "Papilio glaucus" (eastern
Serial comma "against" consistent use of the serial comma: Many sources are against both systematic use and systematic avoidance of the serial comma, making recommendations in a more nuanced way (see Usage and subsequent sections). The style that always uses the serial comma may be less likely to result in ambiguity. Consider this apocryphal book dedication: There is ambiguity about the writer's parentage, because "Ayn Rand and God" can be read as in apposition to "my parents", leading the reader to believe that the writer claims Ayn Rand and God are the parents. A comma before "and" removes the ambiguity: But lists