Butterfly
Butterfly: They can see polarized light and therefore orient even in cloudy conditions. These migrations take place over a number of generations and no single individual completes the whole trip. The long proboscis can be coiled when not in use for sipping nectar from flowers. Nearly all butterflies are diurnal, have relatively bright colors, and hold their wings vertically above their bodies when at rest, unlike the majority of moths which fly by night, are often cryptically colored (well camouflaged), and either hold their wings flat (touching the surface on which the moth is standing) or fold them closely over their bodies. Simple photoreceptor cells located at the genitals are important for this and other adult behaviors. The male passes a spermatophore to the female; to reduce sperm competition, he may cover her with his scent, or in some species such as the Apollos (Parnassias) plugs her genital opening to prevent her from mating again. The vast majority of butterflies have a fou...