"Their hooves are split to cling tightly to the rock surface, are hard and strong to support stress and are covered with a soft elastic cuticle that reduces friction and prevents them from slipping," explains Professor Lu Kuangyang of National Taiwan Normal University.
「長鬃山羊屬偶蹄目牛科動物，在攀岩時，可利用副蹄緊抓地面，以堅硬的主蹄支撐身體重量，蹄緣柔軟富彈性的角質層又能增加附著力，避免『失足』。」他解釋。