translation.en: Now the traditional method of surveying for orangutans is to walk the forest on foot carrying heavy equipment and to use a pair of binoculars to look up in the treetops where you might find an orangutan or its nest.
translation.zh: 通常传统的搜寻红毛猩猩的方法 是带上沉重的装备 徒步穿越雨林， 用双目望远镜在雨林顶端寻找， 你可能会找到一只红毛猩猩，或者它的巢穴。