突然，我听到了狼的嚎叫。
黄石公园是狼的家园。
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.
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.
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.
狼的父母仅仅是被认作雌狼，雄狼或者是一对狼。
Wolf parents used to be referred to as the alpha male and alpha female or the alpha pair.
许多的文章和科学著作都提到下面的关于狼的问题。
Full articles and scientific papers have been written about each of the following questions.
它会翻身仰面躺着以表示对另一头狼的权威的认可。
To show that it accepts the other Wolf's authority, it rolls over on its back.
这座位于熔岩湖地区的牧场开创了对狼的非致命性管理。
The Lava Lake Land &Livestock ranch has pioneered the nonlethal management of wolves.
狼群是每匹狼的家园，狼群的事业是每一匹狼共同的事业。
Wolf groups are home to every Wolf, and the groups' business is every Wolf's business.
没有一个确定的红狼的起源假说能够得到所有科学家的认同。
No single hypothesis for the origin of the red Wolf is universally accepted by scientists.
因为他们并不想在狼群中取得地位，所以达奇尔夫妇赢得了狼的信任。
While they didn't vie for a position within the pack, the Dutchers gained the wolves' trust.
经过对狼的活动大量耐心和细致的观察，他成功获得了这张获奖照片。
With a great deal of patience and careful observation of the wolves' movements, he succeeded in taking the award-winning photograph.
它们呈盘旋状和螺纹形，象征着猎杀的魔力、发光的太阳和狼的眼神。
They show spirals and whorls, symbols of magical power in the hunt, flaming SUNS, the eyes of wolves.
这是典型的狼的进攻方式：攻击然后迅速跳开，但是要比这次凶残的多。
It was the Wolf manner of fighting, to strike and leap away; but there was more to it than this.
还有些死了的。在春天新生狼崽即将到来之前时，狼的数目往往是减少的。
Others die, and by spring, before the arrival of a new crop of pups, the pack size has often diminished.
由此狼的体型受到了限制，因为过分庞大的体型可能最终使其无法狩猎捕食。
This restricts the size of wolves, since becoming too large would ultimately leave them unable to hunt.
班斯先生是国家灰狼保护总负责人。当天北落基山狼的联邦保护令将被解除。
Mr Bangs is the government's chief Wolf recovery co-ordinator, and on that day the grey Wolf of the northern Rocky Mountains will lose its federal protection.
所有狼的脚都和他们的长距离远行，不同类型的地段以及走过雪地是相适应的。
All wolves have feet superbly adapted to long-distance travel over different types of terrain and through (and over!) snow.
Jason掌握了这项技能，这足够他通过观察狼的眼睛找到帮助他狩猎的方法。
Jason learned to understand them as well, it was enough for him to look into a Wolf 's eyes to find the way and help him in hunting.
他已经能看见毒狼的身影在灌木丛中穿梭，碰触到感光植物，留下一串带荧光的路径。
He can see the shadows of the viperwolves moving through the undergrowth, leaving a tell-tale trail of flashes as they brush against the sensitive plants.
不幸的是，达尔文抵达福克兰群岛的时候，人们正在杀狼获取皮毛，结果狼的数量减少了。
Unfortunately, by the time Darwin arrived in the Falklands, the wolves were being killed for their fur, and their Numbers were in decline.
博尔德市科罗拉多大学的认知动物行为学家马克•贝科夫认为“这是狗和狼的明显区别。”
"That is a clear difference between dogs and wolves, " says Marc Bekoff, a cognitive ethologist at the University of Colorado, Boulder.
博尔德市科罗拉多大学的认知动物行为学家马克•贝科夫认为“这是狗和狼的明显区别。”
"That is a clear difference between dogs and wolves, " says Marc Bekoff, a cognitive ethologist at the University of Colorado, Boulder.
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