Arthropods in culture astrological signs of the zodiac. Culture consists of the social behaviour and norms found in human societies and transmitted through social learning. Cultural universals in all human societies include expressive forms like art, music, dance, ritual, religion, and technologies like tool usage, cooking, shelter, and clothing. The concept of material culture covers physical expressions such as technology, architecture and art, whereas immaterial culture includes principles of social organization, mythology, philosophy, literature, and science. This article describes the roles played by arthropods in human culture. The arthropods are a phylum of animals with jointed legs; they include the insects, arachnids such
Ticks of domestic animals animal hosts, but their feeding mechanisms are distinctive. All ticks have an incomplete metamorphosis: after hatching from the egg, a series of similar stages (= instars) develops from a six-legged larva, to eight-legged nymph, and then a sexually developed, eight-legged adult. Between each stage is a molt (ecdysis) which enables the developing tick to expand within a new external skeleton. Ticks are grouped in three families of which two have genera of importance to domestic animals, as follows. The family Argasidae contains the important genera "Argas", "Ornithodoros", and "Otobius". These genera are known as soft ticks because their outer body