Like treehoppers, they, too, communicate in secret - 如同角蝉 豺也在秘密交流

104. you can hear a unique and truly extraordinary sound.
     回荡着一种独特的声音
105. These are dholes...
     这是豺
106. ..wild dogs that whistle.
     一种会吹口哨的野狗
107. Like treehoppers, they, too, communicate in secret -
     如同角蝉 豺也在秘密交流
108. but for a different reason.
     但交流的目的有所不同
109. Hunting in a dense teak forest is difficult...
     在茂密的柚木林中捕猎十分困难
110. ...especially so if your prey is three times your own size.
     而当猎物是猎人的三倍大时 则尤其困难

来自《行星地球 第三季 第五集 Planet Earth S03E05 森林》第 107 行