sentences:  The entire body is covered with white hydrophobic hairs which allow the animal to stay above the surface of the water on which it spends much of its life.Unlike other springtails, "A. maritima" cannot leap, since its furcula is vestigial.This is apparently because when other springtails are placed upon water, surface tension unfolds their furcula and renders them unable to jump, so it has probably been lost by disuse.