But his search isn't as hopeless as it might seem. 但它的搜寻并不是那么毫无希望

72. ...and his world extends only as far as he can sense.
    它的世界仅限于它能感知的范围
73. The fern forest is vast,
    蕨类森林广袤无边
74. and a female could be anywhere.
    雌性节胸蜈蚣不知在何处
75. But his search isn't as hopeless as it might seem.
    但它的搜寻并不是那么毫无希望
76. Females ready to mate leave scent trails
    准备交♥配♥的雌性会留下气味痕迹
77. for males to follow.
    供雄性追踪
78. A lifeline in the darkness.
    这是黑暗中的一线生机

来自《我们星球上的生命 第一季 第三集 Life on Our Planet S01E03 入侵大地》第 75 行