what is louse
Louse (plural: lice) is the common name for the order Phthiraptera, which contains over 3,000 species of wingless insect; three of these species are agents of human disease, including typhus.Lice are obligate ectoparasites of every bird order, and every mammal order except for monotremes, bats, cetaceans and pangolins. louse's color varies from pale beige to dark gray; however, if feeding on blood, it may become considerably darker. Female lice are usually more common than the males, and some species are even known to be parthenogenetic.