Lice PicturesHead lice can affect anyone, regardless of age. They are most prevelant in school-age children. Head lice are small, flat wingless insects. They do not fly or jump. They suck blood. They crawl through the hair and live on the head and spend their entire life cycle in the hair. head lice have 6 legs and large claws which enable them to grasp and hold on to human hair so that they can feed.. When faced with a lice infestation call on Licenders to get you through it. We are here to help.