Mosquitoes belong to a family of over 3,500 small fly species that can transmit viruses, bacteria, and parasites to humans through their bites. They have a slender segmented body with one pair of wings, halteres, and three pairs of legs. Mosquitoes go through life stages of egg, larva, pupa, and adult, with females in most species having specialized mouthparts for piercing skin and sucking blood, while males only drink sugary fluids. Control methods include eliminating breeding grounds, using screens and nets, and applying insect repellents.