are on the prowl. 一步步靠近

93. that, though rarely seen, are rightly feared.
    尽管难得一见 也着实令人胆战心惊
94. Carnivores,
    食肉动物们
95. lured by the prospect of plentiful unsuspecting prey
    正向着毫无戒心的猎物
96. are on the prowl.
    一步步靠近
97. A leopard.
    一只金钱豹
98. Every night, under the cover of darkness they come out to hunt.
    在夜色的掩护下 他们每晚都会出来猎食
99. These are big animals,
    大型食肉动物需要

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 96 行