狼的资料 要有狼的外貌、习性、食物等描写 是英文 急急急急急急急急急急急急急急急急
A wolf, once widely distributed in various parts of the world, but the regional distribution of the wolf has already been greatly reduced, especially in North America and Western Europe; At present, wolves in China are mainly distributed in Northeast China, Inner Mongolia and Tibet, the population density of smaller areas.
According to introduction, a lot of wolf species existing in Mexico have wolves, Arctic wolves, Rocky Mount North wolves, coyotes, wolves in North America,红狼, the Japanese wolf, the wolf, such as India.
Extinct species have: kenai mountain wolf, Newfoundland wolf, gray wolf, Texas, South Rocky Mount Wolf, Newfoundland and other White Wolf.
A wolf of the main features are: canine largest in size, shape may Wolfhound, body length 1500-2050 mm, weight 26-79 kg; its powerful limbs, is fit to run, kiss the Department of slightly sharp,直竖ear, tail long, fluffy hair. Upper body is generally pale yellow,暗黄, gray-brown and light gray, but after most of the two coat color, and another black and white persons; abdomen and limbs inside the white, but inside as well as the limbs, abdomen light coat color, coat color often different habitats and seasonal changes have differences. Before the foot 5 toe, hind toe 4; shoulder and the end of the black hair more diverse habitats, such as Carex, ice sheets, grassland, forest and desertification, etc. has its own footprint. A wolf north often cluster in the winter activities and have the community structure of summer camp is a small family living areas up to 160-350 square kilometers; main predator rabbits, large rodents, deer, and birds and all kinds of野羊fish, and its aggressive temperament, cruel, extreme shortage of food, they have injuries of similar phenomenon. The annual February-March estrus mating, at high altitude may be delayed until April, during 62-63 days, each child 1-11 Aberdeen, usually 4-6 Aberdeen (David Wolf as long as 2-3 years old when the sexual maturation) Life expectancy 12 to 15 years.
A wolf's living habits: A wolf clusters or separate activities, a comprehensive range of habitats, including hills, forests, grasslands, desertification and other living environment, or occupied by other animals, caves, and sometimes their own digging, the hole is about 2-4 meters usually has several entrances. Their usual night, winter and sometimes during the day and also activities, enjoy less human interference, food rich, has a certain hidden under the conditions of survival. Integrated during the breeding season small groups during the winter at the North American taiga zone often composed of wolf predation has larger group of hoofed animals. In Alaska, the largest up to 36 wolves, but generally not more than 20, our group of up to a maximum of 21. The size of wolves varies greatly, often depending on the season and predation change the situation is different. A wolf hybrid is the food composition, all able to catch all their food animals, including birds, amphibians and insects and small animals, and occasionally eat plant food, wolves also eat wild and domesticated hi have the hoofed.
A wolf from the characteristics and living habits look, their families are living a semi-quasi-set social life. That is, the mating season at the family as the unit of life, when the earth rejuvenate, to obtain the food plentiful, easily concealed plant dense hunting; and into winter food deprivation, the association began to rely on the strength of groups of large-scale hunting has hoofed animals. It appears that this animal is the wolf will make use of rich food at the reproductive season to achieve the self-serving, and also the shortage of food at the time a collective effort by the implementation of its existence. This was quite a bit of market economy with a combination of public ownership economy Taste miles.
A wolf from the introduction of a lot of image data can also see the film, a wolf family, only one adult male, whose main duty is to guard against the intrusion of other males and to prevent the escape of the female population. However, in this by the many families consisting of only females, only female wolf has the power of reproductive offspring, other female wolf's job is to help the upbringing, protection of female wolf pups born. Even so, the female wolf is also very hard work, which in addition to feeding offspring, but also to look after at all times to live with other female wolf wolf hung mating, but the one found in a female wolf and wolf-hsiung has a tendency to mating, and its It will be launched to a very brutal attack; if it is successful mating, the female wolf will be killed, thus, mating success of many of the female wolves are away. Image data from the introduction point of view, the fate of such female wolf most tragic, most of them ended in death. Fortunately, the estrus female wolves have a time limit, otherwise, the female wolf is really difficult to live also.
There is also a characteristics of the wolf are not old-age dependents of small animals, at this point with the lions and other animals have a very big difference. The so-called old-age pension is not dependent small wolf Parent David A wolf will only bring up to (about 1 year old) be able to hunt, and then will be mercilessly evicted from their homes, but it will only drive away the male offspring, the majority of female offspring will still be in its wolf parents for some time, studying the offspring-rearing skills. Non-pension is not only when the male wolf, for various reasons, unable to play to protect the family responsibilities, will be outside of its strong adult male Instead, the original home of the male wolf is not killed in action is to flee, the female wolf is also faced with the same problem; when the external male domination of this family, but also to kill and even eat the young wolf minors. Away from their families or groups are A wolf will not be accepted by other wolves (except the young female wolf), so they become孤狼, and孤狼survival probability is very low, so they are also faced with the most Only death.
When the food plentiful, the female wolf will产崽many, food scarcity will be automatic when the cub's birth quantity, as if their ability to have a feeling like; A wolf is still a saving players, they will eat the food can not bury together to address the shortage of food needs. It appears that wolves also knows the importance of food gathering Canton.
According to information on living in the mountains of Mexico and Central A wolf is a unique subspecies, their unique genes, although the shape of small, but very strong; researchers think this is likely to be the ancient Mexicans (such as阿兹克and Inca people) on the dogs, the wolf hybrid to emerge when a species, so the dogs have the genes.
Have the information, said Asian Arab wolf subspecies of this small may be the lot of Europe and Asia, the ancestors of dogs. Vast areas in Asia, the social life and adaptable wolves, dogs live in the area first.
解剖学家and behavior of dogs who have been studied in detail the origin of more than 100 years, it is widely considered: A wolf dogs are the direct ancestors. In all dogs are family members, the wolf's social organization, size and skin color have changed greatly. Until a large number of human predation, the wolf of all terrestrial mammals are most widely distributed, but due to human hunting, cultivation and other factors reduced its quantity. Some scholars believe that the wolf is a opportunist, by its omnivorous judged only human, and its on to follow the footsteps of humanity and of movement, eating discarded human food, or poultry, such as hunting, especially in the seasonal shortage of food . Human migration from the northern region, the wolves and to follow, when their parents were killed, their baby may have to adapt to living with humans (coyotes and jackals A wolf is not the same as flexible social behavior), Since then domestication began. Therefore, researchers think, from wild to domesticated than in the past to imagine the process faster.
China's ancient ancestors of animals are still home to observe, such as "devoured" this proverb is very vivid description of the scenes they are eating; another example, the "ambition", because only the adult male and female wolf reproduction in order to have offspring the power, therefore, every head of a wolf when the desire to have only become a wolf, the offspring would have survived. And "Mind your own business狗拿耗子-----" This saying is a big problem, because, wolves are the ancestors of dogs, and wolves are eating the rats, if the dog is holding the mouse, rat problem we humans it need not fear the.
In recent decades, the world's growing importance in many countries, such as animal behavior research work, and derive the benefit of human development has inspired important, benefited. Also seen from the study of biological diversity by bringing the benefits of mankind, but also the rapid disappearance of the diversity of concerns, in other words, the protection of biological diversity in nature, but also in the protection of our own humanity. Cyanobacteria, red tide, the lake rodent, perhaps is only that we be able to see the disaster, but can not see the disaster perhaps many more than this, This is how much money can not buy or make up for the loss of it.
中文翻译：
狼，曾经广泛分布于世界各地，但目前狼的分布区域已大大缩小，特别是在北美和西欧；目前，在中国狼主要分布在东北、内蒙以及西藏人口密度较小的地区。
据资料介绍，狼的品种很多，现存有墨西哥狼、北极狼、北落基山狼、郊狼、北美洲狼、红狼、日本狼、印度狼等。
已经灭绝的品种有：基奈山狼、纽芬兰狼、德克萨斯灰狼、南落基山狼、纽芬兰白狼等。
狼的主要特征是：犬科中体型最大者，外形似狼犬，体长1500-2050毫米，体重26-79千克；其四肢矫健，适于奔跑，吻部略尖，耳廓直竖，尾毛长而蓬松。上体一般为浅黄、暗黄、灰棕和浅灰色，但又以后两种毛色居多，另有纯黑和白色者；腹部和四肢内侧白色，但四肢内面以及腹部毛色较淡，毛色常因栖息环境不同和季节变化而有差异。前足5趾，后足4趾；肩部和尾端黑毛较多栖息生境多样，如苔草、冰原、草原、森林和荒漠等都有其足迹。北方的狼在冬季常集群活动，并有社群结构，夏季则营小家庭生活，领域范围达160-350平方公里；主要捕食野兔、大型啮齿类、鹿类、各种野羊及鸟和鱼等，其性情凶悍、残忍，在食物极度缺乏的情况下，他们有伤害同类的现象。每年的2至3月发情交配，在高海拔地区可能延迟至4月，孕期62至63天，每胎1至11仔，通常4至6仔（幼狼长至2至3岁时性成熟）寿命12至15年。
狼的生活习性：狼集群或单独活动，栖息环境比较广泛，包括丘陵、森林、草原、荒漠等各种生活环境，或者占用其他动物的洞穴，有时也自己挖掘，洞长约2-4米，通常有几个入口。其通常夜行，冬季有时白天也活动，喜欢在人类干扰少、食物丰富、有一定隐蔽条件下生存。在繁殖季节集成小群，冬季在北美泰加林区狼常组成较大群捕食有蹄类动物。在阿拉斯加，最大狼群达36头，但一般不超过20头，我国最多一群达21头。狼群的大小变化很大，常因季节和捕食的情况不同而改变。狼的食物成分很杂，凡是能捕到的动物都是其食物，包括鸟类、两栖类和昆虫等小型动物，偶尔也进食植物性食物，狼还喜吃野生和家养的有蹄类。
由狼的特征和生活习性看，其是过着一种半家庭半集社的生活。即在交配季节是以家庭为单位生活，此时大地回春，能获取的食物丰沛，植物茂密易于隐蔽狩猎；而进入到冬季食物匮乏之时，其就开始结社以便靠群体的力量猎取大型的有蹄类动物。看来，狼这种动物是很会利用在食物丰沛时节来实现传宗接代上的自利性，又在食物匮乏时靠集体的力量实现其生存。此还蛮有点市场经济与公有制经济相结合的味道哩。
从很多介绍狼的影像资料片中还可以看到，一个狼家庭中只有一只成年雄性，其主要职责是防范其它雄性的侵入，并防止本群中雌性的逃跑。但是，在这个由多只雌性组成的家庭里，只有雌性头狼有生育后代的权力，其它雌狼的工作就是帮助养育、保护雌性头狼所生的幼崽。即便如此，雌性头狼的工作也是很辛苦的，它除了要哺育后代外，还要时刻看管住其它雌狼与雄狼交配，一但其发现某只雌狼与雄狼有交配的倾向，其就会向它发起非常凶残的攻击；如果它交配成功了，雌性头狼就会将其咬死，因而，交配成功的雌狼多是逃之夭夭。而从影像资料的介绍上看，这类雌狼的命运大多很悲惨，多数都是以死亡而告终。幸好雌狼的发情期是有时间性的，否则，雌性头狼还真是活的不易也。
狼还有一个特性是养小不养老的动物，在这点上其与狮子等动物有着非常大的不同。所谓的养小不养老就是，狼父母只将幼狼养育至（约1岁左右）能够狩猎，随后就会毫不留情的将其赶出家门，但其只会赶走后代中的雄性，多数雌性后代还会留在其狼父母身边一段时间，学习养育后代的技能。不养老既是当雄性狼因各种原因无力担当保护家庭的责任时，其就会被外来的强健成年雄性取而代之，原家庭中的雄性狼不是战死就是逃离，雌性头狼也同样面临着这一问题；当外来的雄性统治此家庭后，还会杀死甚至吃掉未成年的幼狼。离开家庭或者群体的狼是不会被其它狼群所接纳（年青的雌性狼除外）的，因此它们就成为了孤狼，而孤狼成活的机率非常低，所以它们所面对着的大多也只有死亡。
当食物丰沛时，雌狼就会多产崽，食物匮乏时其就会自动控制幼崽的出生数量，仿佛其有预感之能力般；狼还是一个节约好手，它们会将吃不掉的食物埋藏起来，以应对食物匮乏之需。看来，狼也深谙广集粮的重要性。
据资料介绍，生活在墨西哥中部山区的狼是一个独特的亚种，其有着独特的基因，虽体形小，但却很强健；研究者认为这很可能是古代墨西哥人（如阿兹克人和印加人）对犬、狼进行杂交时所产生出来的一个品种，因此其有犬的遗传基因。
有资料介绍说，亚洲的阿拉伯狼这个小亚种可能是许多欧洲和亚洲家犬的祖先。在亚洲广大地区，这种群居生活和适应性强的狼，居住在家犬最早出现的地区。
解剖学家和行为主义者已经对家犬的起源详细研究了100多年，现在普遍认为：狼是家犬的直接祖先。在所有犬属家族成员中，狼的社会组织、体型与皮毛颜色均有很大变化。直到人类大量捕食，狼是所有陆地哺乳动物中分布最广的，但因人类的捕杀、垦荒等因素的影响使其数量锐减。有学者认为，狼还是一个机会主义者，由它的杂食性来判断，自有人类始，其就跟随人类的足迹而迁徙，吃人类丢弃的食品，或猎取家禽等，特别是在食物匮乏季节。人类由北半球区域内迁移时，狼群也跟随而至，当它们的父母被猎杀后，其幼仔可能已经适应了同人类一起生活（郊狼和豺没有同狼一样灵活的社交行为），从此驯养开始了。因此，有研究者认为，从野生到驯养的过程比过去想象的更快。
我国古代先人对动物的观察还是很到家的，如“狼吞虎咽”这句成语就很生动的描述了它们吃饭是的情景；又如，“狼子野心”，因为，只有成年雌雄头狼才能有繁殖后代的权力，因此，每一只狼都有当头领的渴望，只有当上了头狼，其才会有后代存留下来。而“狗拿耗子-----多管闲事”这句俗话是很有问题的，因为，狼是狗的祖先，而狼是吃耗子的，如果狗都拿耗子了，鼠患问题我们人类也就不用担惊受怕了。
近几十年来，世界不少国家越来越重视动物行为等的研究工作，并从中获得了有利于人类发展的重要启迪，受益良多。也从研究中看到了生物多样性所带给人类的各种好处，也为多样性的快速消失而担忧，换句话说，保护自然界中的生物多样性，也是在保护我们人类自己。蓝藻、赤潮、洞庭湖鼠患，或许只不过是我们能够看得见的灾害，而看不到的灾害或许比这多的多，这是用多少金钱都无法买到或弥补的损失吧。
灰狼的体重和体型大小各地区不一,一般有随纬度的增加而成正比增加的趋势这一说法.
一般来说,肩高在( 26-36英寸) ,体重32-62公斤( 70-135磅)
野生狼体重记录--------其中1939年在阿拉斯加被打死的一只,,当时80公斤( 175磅) .
最小的狼是阿拉伯狼,雌性的狼有的体重可低至10公斤( 22磅)
狼群适合长途迁行捕猎.其强大的背部和腿部,能有效地舒展奔跑.它们有能力以速度10公里/小时(六英里)长时间奔跑 ,
并能以高达近65公里/小时速度( 40英里) 追猎冲刺。
狼是群居性极高的物种。一群狼的数量大约在5到12只之间，在冬天寒冷的时候最多可到四十只左右，通常由一对优势对偶领导。狼群有领域性，且通常也都是其活动范围，群内个体数量若增加，领域范围会缩小。群之间的领域范围不重叠，会以嚎声向其他群宣告范围。通常群体捕杀大型猎物。幼狼成长后，会留在群内照顾弟妹，也可能继承群内优势地位，有的则会迁移出去（大都为雄狼）再生殖时会使用窝，通常在地面挖洞而成，可长达三四米，入口有大土堆。野生的狼一般可以活 12——16年，人工饲养的狼有的可以活到二十年左右。
奔跑速度极快，可达五十五公里左右，持久性也很好。
智能颇高，可以气味、叫声沟通。
驯化后的狗，脑容量较狼小了百分之二十到三十，虽然在划定区域地图的部分退化，但在与其他人类相处的部分则增加。
狼是以肉食为主的杂食性动物,在夏天偶尔也吃点青草,嫩芽,浆果.是生物链中极关键的一节。
狼群通常是由2-15只成员组成一个非常社会化的团体
由最强的雄性领导，所有成员都要帮助照顾幼狼。
母狼通常在4月-6月生产，平均能生7 只幼崽。
狼群主要捕食中大型哺乳动物，研究表示, 狼是控制当地生态平衡的关键角色,
它们唯一的天敌 就是人。
狼的嘴长而窄，张着42颗牙。狼有五种牙齿，门牙、犬齿、前臼齿、裂牙和臼齿。其犬牙有四个，上下各两个，能有1.5英寸（2.8厘米）长，足以刺破猎物的皮以造成巨大的伤害。裂齿也有四个，是臼齿分化出来的，这也是食肉类的特点，裂齿用于将肉撕碎。12颗上下各6的门牙则比较小，用于咬住东西。
狼的怀孕期为61天左右。低海拔的狼一月交配，高海拔则在四月交配。
小狼两周后睁眼，五周后断奶，八周后被带到狼群聚集处。
狼成群生活，雌雄性分为不同等级，占统治地位的雄狼和雌狼随心所欲进行繁殖，处于低下地位的个体则不能自由选择。雌狼产子于地下洞穴中，雌狼经过六十叁天的怀孕期，生下叁只到九只小狼，也有生十几只的。没有自卫能力的小狼，要在洞穴里过一段日子，公狼负责猎取食物。小狼吃奶时期大约有五、六个月之久，但是一个半月也可以吃些碎肉。叁、四个月大的小狼就可以跟随父母一道去猎食。半年后，小狼就学会自己找食物吃了。狼的寿命大约是十二到十四年。在群体中成长的小狼，非但父母呵护备至，而且，族群的其他份子也会爱护有加。狼和非洲土狼会将杀死的猎物，撕咬成碎片，吃下腹内，待回到小狼身边时，再吐出食物反哺。赤狼有时也会在族群中造一育儿所，将小狼集中养育，由母赤狼轮流抚育小狼，毫无怨尤。
一般占优势主导地位的狼会身挺高腿直，神态坚定，耳朵是直立向前。
往往尾部纵向卷曲朝背部。这种显示的是级别高主导地位的狼可能一直盯着一个唯唯诺诺的地位低下的狼。
活跃--玩耍时，狼会全身伏低，嘴唇和耳朵向两边拉开，有时会主动舔或快速伸出舌头。
愤怒--愤怒的狼的耳朵会竖立，背毛也会竖.唇可卷起或后翻，门牙露出，有时也会弓背或咆哮。.
恐惧--害怕时狼会试图把它的身子显得较小，从而不那么显眼，或拱背防守，尾收回。
攻击--狼在蹲下或扬身低头并放松皮毛时，是发起攻击的信号。.
愉悦--可能摇摆尾巴，舌头也可能伸出口。
狩猎--捕猎时的狼,因狩猎的紧张，因此尾部会横直。
游戏--尾巴高和舞动。狼可以任意妄为的转圈跳跃，或低头，把前面的身体伏倒在地上，而抬高后股。这类似于家犬的嬉戏行为。
灰狼的亚种分类非常有争议。一般相信过去曾经有约50个亚种存在。然而，一个新而被广泛接受的列表将狼分为17种现存的亚种和2种最近灭绝的亚种。 这种分类法综合考虑了解剖学上、分布上和不同狼群迁徙习性上的特点。
Canis lupus alces (Kenai Peninsula Wolf) 基奈山狼（灭绝）
Canis lupus arctos (Melville Island Wolf, Arctic wolf) 北极狼
Canis lupus baileyi (Mexican Wolf) 墨西哥狼
Canis lupus beothucus (Newfoundland Wolf) 纽芬兰狼 （灭绝）
Canis lupus bernardi (Banks Island Tundra Wolf) 班克斯岛苔原狼
Canis lupus columbianus (British Columbian Wolf) 不列颠哥伦比亚狼
Canis lupus crassodon (Vancouver Island Wolf) 范库弗狼
Canis lupus fuscus (Cascade Mountains Wolf) 小瀑布山狼
Canis lupus hudsonicus (Hudson Bay Wolf) 哈德逊湾狼
Canis lupus griseoalbus (Manitoba Wolf) 马尼托巴狼
Canis lupus irremotus (Northern Rocky Mountain Wolf) 北落基山狼
Canis lupus labradorius (Labrador Wolf) 拉布拉多狼
Canis lupus ligoni (Alexander Archipelago Wolf)亚历山大群岛狼
Canis lupus lycaon (Eastern timber wolf) 东部森林狼
Canis lupus mackenzii (Mackenzie Tundra Wolf) 密歇根苔原狼
Canis lupus manningi (Baffin Island Tundra Wolf) 巴芬岛苔原狼
Canis lupus mogollonensis (Mogollon Mountain Wolf) 蒙古狼
Canis lupus monstrabilis (Texas Gray Wolf) 德克萨斯灰狼（灭绝）
Canis lupus nubilus (Great Plains Wolf, Buffalo Wolf)大平原狼、布法罗狼
Canis lupus occidentalis (Mackenzie Valley Wolf) 密歇根山谷狼
Canis lupus orion (Greenland Wolf) 格陵兰狼
Canis lupus pambasileus (Interior Alaskan Wolf) 阿拉斯加内陆狼
Canis lupus tundrarum (Alaska Tundra Wolf) 阿拉斯加苔原狼
Canis lupus youngi (Southern Rocky Mountain Wolf) 南落基山狼（灭绝）
Canis lupus albus (Tundra Wolf) 苔原狼（欧洲）
Canis lupus arabs (Arabian wolf) 阿拉伯狼
Canis lupus campestris (Steppe Wolf) 西伯利亚平原狼
Canis lupus communis (Central Russian Wolf) 俄罗斯狼
Canis lupus cubanensis (Caspian Sea Wolf) 里海狼
Canis lupus deitanus (Spanish wolf) 西班牙狼（灭绝）
Canis lupus hattai (Japanese wolf) 日本狼（灭绝）
Canis lupus hodophilax (Hondo Japanese wolf) 本洲狼（灭绝）
Canis lupus italicus (Italian Wolf) 意大利狼
Canis lupus laniger (Tibetan Wolf) 中国狼
Canis lupus lupaster (Egyptian Wolf) 埃及狼
Canis lupus lupus (Common Wolf) 普通狼指名亚种（欧洲和俄罗斯）
Canis lupus minor (Austro-Hungary Wolf) 奥匈狼
Canis lupus pallipes (Indian, Iranian, Asiatic wolf) 亚洲狼
Canis lupus signatus (Iberian Wolf) 伊比利亚狼
不同种类的狼外貌特征并不相同。
拉丁学名： Canis lupus（总称）, Canis lupus laniger（中国狼 狼，似犬，锐头，白颊，高前广后。――《说文》
并驱从两狼兮。――《诗·齐风·还》
哺乳纲犬科犬属的一种大型犬形哺乳动物，聪明勇敢，有时捕食牛羊，极少袭击人类，冬季食物短缺时成群猎食。
狼卜（相传狼必先卜方向，然后觅食）；狼卜食（传说狼觅食，先卜方向）；狼子（狼崽子。比喻凶暴狠毒的人）；狼毫（狼毛。或指用鼬鼠皮制成的毛笔);狼犬（狼和犬。亦称“狼狗”。一种外形如狼的狗。个性凶猛，嗅觉灵敏）；狼牙（狼的牙齿）；狼虎（狼与虎；比喻凶恶残暴的人）
物种命名人及年代：Linnaeus，1758
狼曾经在全世界广泛分布，目前主要只出现于亚洲、欧洲、北美和中东。
狼属于生物链上层的掠食者，通常群体行动。由于狼会捕食羊等家畜，因此直到20世纪末期前都被人类大量捕杀，不少亚种如日本狼等都已经绝种。
狼之起源 古生物时代，食肉性动物中进化最为完美的三种顶级动物，为恐怖鸟（泰坦鸟）、剑齿虎、狼，今天我们只能看见其中的狼，而恐怖鸟（泰坦鸟）、剑齿虎都已灭绝。
狼在距今500万年的时候起源于地球，在漫长的进化过程中，很多较具备强者实力的动物已灭绝，可狼却生存了下来，也许如达尔文所说：“物竞天择，适者生存。”
距今约五百万年前的上新世纪中期，狼起源于新大陆，并在一百五十万年前的更新世中期分化发展。外形特征 外形有小（郊狼）、中（森林狼）、大（草原狼），吻尖长，眼角微上挑。因为产地和基因不同，所以毛色也不同。外形和狼狗相似，但吻略尖长，口稍宽阔，耳竖立不曲。尾挺直状下垂；毛色棕灰；常见灰、黄两色，还有黑、红、白等色，个别还有紫、蓝等色，胸腹毛色较浅。腿细长强壮，善跑。灰狼的体重和体型大小各地区不一样，一般有随纬度的增加而成正比增加的趋势这一说法。一般来说，肩高在66.04-91.44厘米（26-36英寸)，体重32-62公斤（70-135磅）。野生狼体重记录——其中1939年在阿拉斯加被打死的一只，当时80公斤（175磅）。最小的狼是阿拉伯狼，雌性的狼有的体重可低至10公斤（22磅）。狼群适合长途迁行捕猎。其强大的背部和腿部，能有效地舒展奔跑
生活习性 狼是群居性极高的物种。同时，狼群也拥有着极为严格的等级制度。一群狼的数量大约在6到12只之间，在冬天寒冷的时候最多可到五十只以上，通常以家庭为单位的家庭狼由一对优势对偶领导，而以兄弟姐妹为一群的则以最强一头狼为领导。狼群有领域性，且通常也都是其活动范围，群内个体数量若增加，领域范围会缩小。群之间的领域范围不重叠，会以嚎声向其他群宣告范围。幼狼成长后，会留在群内照顾弟妹，也可能继承群内优势地位，有的则会迁移出去（大多为雄狼）而还有一些情况下会出现迁徙狼，以百来头为一群，有来自不同家庭等级的各类狼，各个小团体原狼首领会成为头狼，头狼中最出众的则会成为狼王。野生的狼一般可以活12——16年，人工饲养的狼有的可以活到二十年左右。奔跑速度极快，可达五十五公里左右。狼的持久性也很好，它们有能力以60公里/小时的速度奔跑20公里。如果是长跑，狼的速度甚至会超过猎豹。智商颇高，可以通过气味、叫声沟通。狼是以肉食为主的杂食性动物，是生物链中极关键的一节。生活环境 灰狼曾经遍布北美洲但现在只能在阿拉斯加和不列颠哥伦比亚省寒带草原和森林能经常见到它们
中国的蒙古草原早年前曾居住着大片的草原狼，但因为多年前的“剿狼行动”，如今大部分都已移居至外蒙古。而美国只有一小部分地区还有灰狼。
狼群主要捕食中大型哺乳动物，研究表示，狼是控制当地生态平衡的关键角色，它们唯一的天敌，就是人类。
狼的嘴长而窄，长着42颗牙。狼有五种牙齿，门牙、犬齿、前臼齿、裂齿和臼齿。其犬齿有四个，上下各两个，能有1.5英寸（2.8厘米）长，足以刺破猎物的皮以造成巨大的伤害。裂齿也有四个，是臼齿分化出来的，这也是食肉类的特点，裂齿用于将肉撕碎。12颗上下各6的门牙则比较小，用于咬住东西。生长繁殖 每年1至2月狼开始交配
狼的怀孕期为61天左右。低海拔的狼在一月交配，高海拔的狼则在四月交配。小狼两周后睁眼，五周后断奶，八周后被带到狼群聚集处。进化历史 大约在6,500多万年以前的中生代白垩纪晚期，恐龙的突然灭绝给了哺乳动物繁荣昌盛的绝佳机会。在此后的1,000多万年的时间里，随着新生代的大幕逐渐拉开，各种小型哺乳动物纷纷登上了进化史的舞台。在距今大约5,000万年的新生代始新世，现代食肉动物的共同祖先开始出现，以麦芽西兽（Miacis）的出现为标志，食肉类动物正式走上了漫长的进化之路。
狼成群生活，雌雄性分为不同等级，占统治地位的雄狼和雌狼随心所欲进行繁殖，处于低下地位的个体则不能自由选择。雌狼产子于地下洞穴中，雌狼经过六十三天的怀孕期，生下三只到九只小狼，也有生十几只的。没有自卫能力的小狼，要在洞穴里过一段日子，公狼负责猎取食物。小狼吃奶时期大约有五、六个月之久，但是一个半月也可以吃些碎肉。三、四个月大的小狼就可以跟随父母一道去猎食。半年后，小狼就学会自己找食物吃了。狼的寿命大约是十二到十四年。在群体中成长的小狼，非但只有父母呵护备至，族群的其他份子，也会对狼崽爱护有加。狼和非洲土狼会将杀死的猎物撕咬成碎片吃下腹内，待回到小狼身边时，再反刍出食物反哺。雌狼有时也会在族群中造一间“育儿所”，将小狼集中养育，由母狼轮流抚育小狼，毫无怨尤。从这几方面可以看出，说狼的家庭，族群观念极强
The gray wolf or grey wolf (Canis lupus) is a species of canid native to the wilderness and remote areas of North America, Eurasia, and North Africa. It is the largest member of its family, with males averaging 43–45 kg (95–99 lb), and females 36–38.5 kg (79–85 lb).[3] It is similar in general appearance and proportions to a German shepherd,[4] or sled dog, but has a larger head, narrower chest, longer legs, straighter tail and bigger paws.[5] Its winter fur is long and bushy, and is usually mottled gray in color, though it can range from nearly pure white, red, or brown to black.[4]
Within the genus Canis, the gray wolf represents a more specialised and progressive form than its smaller cousins (the coyote and golden jackal), as demonstrated by its morphological adaptations to hunting large prey, its more gregarious nature[6] and its highly advanced expressive behavior.[7][8] It is a social animal, travelling in nuclear families consisting of a mated pair, accompanied by the pair's adult offspring.[9] The gray wolf is typically an apex predator throughout its range, with only humans and tigers[10][11][12][13] posing a serious threat to it. It feeds primarily on large ungulates, though it will also eat smaller animals, livestock, carrion, and garbage.[14]
The gray wolf is one of the world's most well researched animals, with probably more books written about it than any other wildlife species.[15] It has a long history of association with humans, having been despised and hunted in most agricultural communities due to its attacks on livestock, while conversely being respected by some Native American tribes.[14] It is the sole ancestor of the dog, which was first domesticated in the Middle East.[16] Although the fear of wolves is prevalent in many human societies, the majority of recorded attacks on people have been attributed to animals suffering from rabies. Non-rabid wolves have attacked and killed people, mainly children, but this is unusual, as wolves are relatively few, live away from people, and have been taught to fear humans by hunters and shepherds.[17] Hunting and trapping has reduced the species' range to about one third, though its still relatively widespread range and stable population means that the species is not threatened at a global level, and is therefore classified by the IUCN as Least Concern.[1]
It's only natural that people should think that wolves are dangerous. However, wolves aren't always dangerous. Wolves look like dogs. They often come at night in winter in the mountains. They eat meat so their teeth are sharp. People kill wolves so they are becoming fewer and fewer. It is time that they were protected by people.
你妈 我要的是英文
人们认为狼很危险，这很自然，但是狼不一定危险。狼像狗一样，它们经常在冬夜出现在山上。它们是吃肉的，所以犬牙很锐利。人们经常杀狼，所以它们越来越少了。是人们保护它们的时候了。
狼的资料 要有狼的外貌、习性、食物等描写 是英文 急急急急急急急急急急急急急急急急视频
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