“狼的名声不好，这是不公正的。”一位养着三只狼的女人说。
突然，我听到了狼的嚎叫。
黄石公园是狼的家园。
我在黄石国家公园做了一年多的狼踪迹志愿者。我的工作是追踪合记录狼的信息。
I've been working as a volunteer wolf tracker in Yellowstone National Park for over a year. It's my job to follow wolves to record information about them.
狼的消失带来了许多意想不到的结果。
The disappearance of the wolves had many unexpected results.
在没有狼的情况下，土狼的数量也迅速增加。
In the absence of wolves, coyote populations also grew quickly.
这是典型的狼的进攻方式：攻击然后迅速跳开。
This is a typical wolf's attack: attack and then leap away quickly.
鹿和麋鹿的数量迅速增长，它们是狼的主要食物来源。
Deer and elk populations grew rapidly, and they are major food sources for the wolf.
鹿和麋鹿的数量迅速增长，它们是狼的主要食物来源。
Deer and elk populations—major food sources for the wolf—grew rapidly.
鲸鱼不是河马的后代，而是来自古老的类似狼的生物。
Whales are descended not from hippos but from that distant wolf-like creatures.
例如，几年前在巴基斯坦，他们发现了一个类似狼的生物的头骨。
For example, a few years back in Pakistan, they found the skull of a wolf-like creature.
正因为如此，家养的羊虽然很容易成为狼的猎物，但通常不会受到狼的攻击。
For this reason, domestic sheep, though essentially easy prey for wolves, are not usually attacked by them.
科学家们以前见过这种类似狼的生物，但这种个头骨（与之前的）有所不同。
Scientists had seen this wolf-like creature before, but this skull was different.
政府将此归因于狼的大量存在，在1910年开始向猎杀狼的猎人提供奖励。
Attributing this to the large number for wolves, in 1910 the government began offering rewards to hunters for killing wolves.
顺便说一下，在一个很古老的故事里有一个关于狼的流行表达——披着羊皮的狼。
By the way, there is a popular expression about wolf from a very old story — a wolf in sheep's clothing.
我已经有好长时间听不到狼的嗥叫了。
在狼的尖牙内部，是长着石楠的山。
每年有多少的动物遭到狼的猎食？
狼的体型取决于他们生活的地方。
虽然努力恢复野外狼的工作非常成功。
Efforts to restore wolves to the wild are succeeding, though.
请在下一页了解更多的人和狼的关系。
Learn more about the relationship between wolves and people on the next page.
这是因为狼的流动性太强，距离太远。
This is because wolves are so mobile and travel such great distances.
狼的强有穿透力的嚎叫是大自然赋予的。
The howl of the wolf is one of nature's most evocative and powerful sounds.
我一声吼叫，吓破狼的胆。
狼的恭顺的行为有两个层次：主动与被动。
There are two levels of submissive behavior: active and passive.
同时它们获取其他狼的地位和情感等信息。
At the same time they obtain information about status and emotions of others animals.
狼的怀孕周期是多长？
狼的叫声分为四类：狂吠，呜咽，嚎叫和咆哮。
Wolves' vocalizations can be separated into four categories: barking, whimpering, growling, and howling.
其实狗也遗传了它们的祖先——狼的大部分语言。
Dogs inherited most of their language from their ancestors, the wolves.
其实狗也遗传了它们的祖先——狼的大部分语言。
Dogs inherited most of their language from their ancestors, the wolves.
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