The fine hairs of varying lengths on their legs serve as taste and smell organs, and are also used for hearing and for judging orientation. They are highly sensitive to air flows on the ground, on water or across the spider's web, and are thus indispensable survival tools for hunting and for escaping predators.
腿上長短不一的細毛，分別主司味覺、嗅覺，還能聽聲辨位，對地面、水面、蛛網上的空氣流動非常敏銳，是獵食與禦敵不可或缺的求生武器。