The herd has long since moved on,
鹿群早已走遠
but her maternal instinct is so strong
但它在強烈母性本能的驅使下
she'll stay to search for her missing calf for days.
獨自留下來 花好幾天尋找自己的寶寶
The reindeer are free from flies for now,
馴鹿群暫時逃離了可惡的蒼蠅
but with no food on these high slopes,
但是高地上沒有食物
they will eventually be forced to descend to find new pastures
它們遲早要回到山下的草原
and face the biting swarms once more.
再度面對蒼蠅大軍
No animal makes a longer migration across the lands of the earth
這些哺乳動物的遷徙距離之長 在動物王國里
than these mammals.
無人能出其右
Other mammals have found a more economic way
另一種得長途遷徙的哺乳動物
of travelling huge distances and at greater speed.
找到了更經濟,更快速的方法
They go by air.
它們用飛的