this hatchling's chances are slim. 这只雏鸟的生存机会十分渺茫

41. They must depart.
    必须离开了
42. Just a few minutes too late.
    就差了几分钟没赶上
43. Alone and without the protection of its parents,
    缺少了父母的保护
44. this hatchling's chances are slim.
    这只雏鸟的生存机会十分渺茫
45. Survival here, as in all deserts,
    在沙漠中生存
46. is on a knife edge.
    生命如履薄冰
47. So desert dwellers have had to evolve in remarkable ways.
    因此 沙漠的居民必须以非凡的方式进化

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 44 行