They've developed a unique skill 它们发展出一项独特技能

288. It will wait for hours at a time for signs of passing heat.
     它会等待经过的热痕迹 一等就是几个小时
289. Heat that comes from small warm-blooded mammals.
     来自小型温血哺乳动物身上的热痕迹
290. But kangaroo rats are not your average rodent.
     但是更格卢鼠可不是普通的啮齿动物
291. They've developed a unique skill
     它们发展出一项独特技能
292. befitting of their name.
     与其名称非常相称
293. The cold-blooded sidewinder bides its time.
     冷血的侧进蛇耐心地等待
294. It can go weeks without eating...
     它可以几周不进食

来自《我们星球上的生命 第一季 第五集 Life on Our Planet S01E05 巨兽阴影下》第 291 行