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

还有...这一个巢表明是有...量有点儿大。

Almost everything they eat is the brown lemming here.

它们吃几乎都是棕色。

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

苔原上出现这么多北极狐，等待着们是什么显而易见了。

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

对于这种小而挑剔啮齿类动物来说，没有比北极苔原更舒适地方了。

The snowy owls are also enjoy the abundance of lemmings on the Scandinavian tundra.

雪鸮也享用这斯坎纳维亚苔原上丰盛大餐。

And the more lemmings there are to eat, the more snowy owl eggs that produced.

而供捕食越多，它们产下雪鸮蛋越多。

The lemming relies on the snow to hide.

要依赖雪来藏身。

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

但它们数量最近有所下降，数量也有所下降。

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

除了偶尔大量聚集以外更喜欢独居生活。

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

仅仅五周后，这些幼断奶转而以为主食。

So there is lemmings here... so good side you have...seven eggs or five chicks or two eggs right now.

这里有，你来很是时候，现在有七个蛋… 五只雏鸟，两个蛋。

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

强烈胃酸消化着肉，但是骨骼和毛被反刍出来。

Great numbers of the lemmings begin a long and hard journey across the Scandinavian plains, a journey that may last weeks.

大量开始踏上一段穿越斯堪纳维亚平原，又长又艰苦程，这个程也许会持续好几个星期。

Unlike most small mammals, lemmings don't hibernate through the harsh northern winter which can last for nine month of the year.

与大多数小型哺乳动物不同，在北方整个严峻寒冬里都不冬眠，而这里一年里九个月都是冬季。

Lemmings. They breed at an astonishing rate. This female give birth to two litters during the winter.

，它们以惊人速度进行繁殖。这只雌性一个冬天已生了两窝幼。

For lemmings, small fussy rodents, there is no place more comfortable than the Arctic tundra.Their presence ensured their well-being of other tundra inhabitants that eat them: owls, Arctic foxes, weasels, eagles, gulls and cranes.

对于这种小而挑剔啮齿类动物来说，没有比北极苔原更舒适地方了。它们存在确保了其他苔原栖息者福祉，猫头鹰、北极狐、黄狼、鹰、海鸥和鹤都以它们为食。

These might be anything from a field biologist's notes of lemming populations on Spitzbergen to a physicist's creation of muon tracks in a cloud chamber, or from a set of equations in the mathematical imagination to a vast computer model of the world's climate.

在这本书中你将会看到野外生物学家对于斯匹茨卑根群岛上种群阐述，物理学家在云室里创建μ介子轨迹，利用数学概念思考出一组方程式，以及巨型计算机模型中全球气候。