評(píng)論
打印
The arctic fox's fur is changing from white to brown, making it incredibly well camouflaged against the tundra's summer terrain.
北極狐的毛色從白色變成了棕色，這使它在夏季的苔原地貌環(huán)境中偽裝得異常出色。
The fox's diet is not limited to lemmings. This male is searching for eggs.
北極狐的食物不只限于旅鼠，這只雄性正在搜尋鳥(niǎo)蛋。
Right now, he needs to find food and lots of it. He has many mouths to feed.
現(xiàn)在，它需要找到很多食物，因?yàn)橛泻芏鄰堊斓戎桂B(yǎng)。
In fact, the arctic fox has more pups than any other carnivore on the planet.
實(shí)際上，北極狐是地球上產(chǎn)崽最多的食肉動(dòng)物。
It's thought that they may have up to twenty five in a single litter.
據(jù)說(shuō)它們一窩最多可以產(chǎn)多達(dá)二十五只的幼狐。
Soon, these pups will have to fend for themselves in one of the most unforgiving wildness on the planet.
很快，這些幼崽就要自立面對(duì)這地球上最荒涼的一處地方。
The pups need to gain weight and learn the skills they'll need to survive when the harsh tundra winter returns in just a few week's time.
幼崽們需要增加體重和學(xué)習(xí)更多的生存技能，以應(yīng)對(duì)苔原上僅僅幾周之后就卷土重來(lái)的嚴(yán)酷寒冬。
To feed this many pups, the males have their work cut out.
為了喂養(yǎng)眾多的幼稚，狐貍爸爸時(shí)常必須中斷捕獵。
But fortunately in the arctic summer, the sun never sets and they can hunt around the clock.
不過(guò)幸好在北極的夏天，太陽(yáng)從不落山，因此它們可以全天候捕獵。
After just five weeks, these pups will be weaned and they will mostly eat lemmings.
僅僅五周后，這些幼崽就能斷奶轉(zhuǎn)而以旅鼠為主食。
With so many arctic foxes on the tundra, it's easy to see what is happening to all the lemmings.
苔原上出現(xiàn)這么多的北極狐，等待著旅鼠們的是什么就顯而易見(jiàn)了。
But it isn't just the arctic foxes that prey on the lemmings.
但并不是只有北極狐才會(huì)捕食旅鼠。
The snowy owls are also enjoy the abundance of lemmings on the Scandinavian tundra.
雪鸮也享用這斯坎的納維亞苔原上豐盛的旅鼠大餐。
And the more lemmings there are to eat, the more snowy owl eggs that produced.
而可供捕食的旅鼠越多，它們產(chǎn)下的雪鸮蛋就越多。
These eggs laid over a month ago are now beginning to hatch.
這些一個(gè)多月前產(chǎn)下的蛋現(xiàn)在開(kāi)始孵化了。
Within days of hatching, these young snowy owls are ready to begin their life on diet of lemmings.
剛剛孵化幾天，這些年幼的雪鸮己經(jīng)準(zhǔn)備開(kāi)始它們以旅鼠為食的生命歷程了。
The chicks will be fed strips of meat until they are big enough to swallow whole animals.
幼鳥(niǎo)會(huì)被喂以撕開(kāi)的肉條，直到它們長(zhǎng)大到足以吞下整只旅鼠。
