Their only means of escape 唯一的逃生方法

232. This is the strawberry dart frog of Costa Rica.
     这是哥斯达黎加的草莓箭毒蛙
233. Her tadpoles are in mortal danger.
     它的蝌蚪危在旦夕
234. Their tiny puddle, almost dry.
     小水洼几乎快要干涸
235. Their only means of escape
     唯一的逃生方法
236. is on their mother's back.
     就是爬到母亲的背上
237. The hard part is finding water.
     难点在于找到水
238. Luckily...
     幸运的是

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 235 行