The droppings also support other types of cockroaches 粪便也能养活其它种类的蟑螂

81. In the absence of plants this food chain is based on a continuous supply of bat droppings.
    在缺少植物的情况下 这里的食物链 完全依赖供应不断的蝙蝠粪便
82. The cockroaches feed on the guano
    蟑螂的食物就是粪便
83. and anything that falls into it.
    以及任何掉进里面的东西
84. The droppings also support other types of cockroaches
    粪便也能养活其它种类的蟑螂
85. which spend part of their day resting on cave walls.
    它们一天大部分时间都呆在洞壁上
86. These in turn become food for giant cave centipedes,
    这些蟑螂也接连成为了 洞穴大蚰蜒的美餐
87. some more than 20 centimetres long.
    有的蚰蜒能长到20厘米长

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 84 行