And you have lemmings...that’s a nest indicating that lemmings are reserved...somewhat abundant.

还有旅...这一个巢表明是有旅的...量有点儿大。

With so many arctic foxes on the tundra, it's easy to see what is happening to all the lemmings.

苔原上出现这么多的北极狐，等待着旅们的是什么就显而易见了。

But their numbers have fallen recently as has been the number of lemmings.

但它们的数量最近有所下降，旅的数量也有所下降。

Once the lemmings finished their pawpsicles, they threw the sticks into a recycling bin.

旅们吃完爪爪冰棍，就将冰棒棍扔进了垃圾回收箱里。

Other sequences come from land animals, including caribou, hares, mastodons, geese, lemmings and ants.

其他序列来自陆地，包括驯鹿、野、乳齿象、鹅、旅和蚂蚁。

The DNA also showed the presence of animals including geese, hares, reindeer and lemmings.

DNA还显示了鹅、野、驯鹿和旅等的存在。

The lemmings eat everything in their path, continuing their destructive march until they reach the sea.

旅路上所有的东西都吃掉，一直继续着它们破坏性的行进直到到达海边为止。

Upon reaching the coast, the lemmings do not stop but swim by the thousands into the surf.

到达海岸后，旅们并不就此止步，而是数千只一起游进海浪里。

After just five weeks, these pups will be weaned and they will mostly eat lemmings.

仅仅五周后，这些幼崽就能断奶转而以旅为主食。

For lemmings, small fussy rodents, there is no place more comfortable than the Arctic tundra.

对于旅这种小而挑剔的啮齿类来说，没有比北极苔原更舒适的地方了。

However, when the lemmings' food supply becomes too low to support the population, a singular migration commences.

但是，当它们的食供应少到无法喂饱整个族群时，一次非凡的迁徙就开始了。

When their food supply is sufficiently large, the lemmings live a normal, undisturbed life.

当它们的食供应充足的时候，旅们过着平常、不受侵扰的生活。

Almost everything they eat is the brown lemming here.

它们吃的几乎都是棕色的旅。

The lemming is one such animal.

旅就是这样一种。

The lemming relies on the snow to hide.

旅要依赖雪来藏身。

Strong stomach acid digests the flesh, but the bones and furs of the lemmings are regurgitated.

强烈的胃酸消化着肉，但是旅的骨骼和毛被反刍出来。

The lemmings leave their nests all together at the same time, forming huge crowds.

旅在同一时间一起离开它们的巢穴，组成巨大的迁徙群体。

Despite occasionally congregating in huge numbers the lemming prefers a solitary life style.

除了偶尔大量聚集以外旅更喜欢独居生活。

When there's plenty of Lemmings, we have a stable population of Snowy Owls.

当有大量的旅时，我们有一个稳定的雪鸮种群。

One lemming bought an icy treat, and then the rest of them followed.

一只旅买了一份冰爽的冰棍，然后其他旅纷纷仿效。