有关拯救动物的英语作文汇集20篇

My favorite little animal is a chicken.

Just, my house downstairs 307 to raise a few chicks. Every day when we pass by, these chicks are leaning on the head to see us miles.

The chicks are full of hairy and cute. A golden feather like a golden dress. The chicks have a pair of pointed mouths. Round eyes to see people when it is quite spirit of it

I did not see their ears, but chicks could not have ears. If there is no ears, then we walked over, how they will be wiped out toward our head look at us?

Mother said, just hatched chicks can only eat small grains, can not eat millet or corn, but also often give them water. If there are small insects to eat them, they will grow more air.

I like these lovely chicks too much But Mom and Dad said that now can not raise, do not raise well, they will die.

There is no denying the fact that keeping pets is a hotly debated topic today. Some people claim that keeping pets is a good thing to do. They believe that pets, like cats and dogs, can help relieve the loneliness suffered by senior citizens and other social members who are confined to their homes for this reason or that. They also argue that keeping pets helps mankind understand animals world and develop positive feelings toward them.

有一个不可否认的事实，即养宠物是当今一个被热烈讨论的话题。有的人认为养宠物是一件好事。他们认为宠物，比如猫和狗，有助于缓解年长者和那些由于这样那样的家庭原因限制的社会成员的孤独感。他们还认为，养宠物有助于人类了解动物世界，培养对它们的积极态度。

Others, however, hold the opposite view. They regard keeping pets as a useless but harmful thing to do. Firstly, pets can transmit diseases. Secondly, the noises and dung of pets are sources of pollution. Last but not least, as many rare birds and animals are kept as pets, they will surely be hunted on a large scale, which means a threat to the balance of the ecosystem.

然而，其他人持相反观点。他把养宠物当做是无用而且有害的事。首先，宠物可以传播疾病。其次，噪音和宠物粪便是污染的来源。最后，许多珍禽异兽作为宠物饲养，他们一定会被大规模猎杀，这意味着威胁到生态系统的平衡。

Weighing the arguments of both sides, I am inclined to agree with the latter. Anyway, we can lessen our loneliness and express our love toward animals in other ways. And it is my beliefs that only by placing man and other species on an equal basis can us expect to have a lively and colorful world.

权衡双方的论据，我更倾向于同意后者。不管怎么样，我们可以通过其他方式来减少我们的孤独和向动物表达我们的爱心。我相信，只有在人类和其他物种平等的基础上，我们才能期待有一个生动多彩的世界。

[关于宠物动物的英语作文

Some people think that human needs for farmland, housing, and industry are more important that saving land for endangered animals.

Do you agree or disagree with this point of view? Why or why not?

Use specific reasons and examples to support your answer.

In the past, there have been many endangered animals. Now they are extinct. Does it matter? Has our environment been affected by their absence? Has the quality of our own life been changed? The answer to these questions is “Yes.”

Yes. It does matter if we destroy an endangered species habitat to develop more farmland, housing or industrial parks. There is a delicate balance of nature. If one small part is removed, it will effect all the other parts.

For example, if certain trees are cut down, bats will have no place to roost. If they cannot roost, they cannot breed. If there are no bats, there will be no animal, or bird to eat certain insects that plague our crops.

Yes. Our environment has been affected by the absence of certain animals. Certain flowers are pollinated by butterflies, which migrate from Canada to Mexico.

Some of the breeding grounds of these butterflies were destroyed. Now these flowers are disappearing from certain areas. We will no longer be able to enjoy their beauty.

Yes. The quality of our life has been changed America used to be covered with giant trees. Now we have to visit them in one small park.

Rain forests around the world are being cut down to make room for humans. We will never be able to see or study this fragile ecosystem.

I would encourage us humans to look for other alternatives for our farmlands, housing, and industries. We have alternatives; the animals do not.

One Sunday afternoon, I casually adjust the TV channel. All of a sudden, disastrous scene into my line of sight: a peasant who was holding a piece of iron hammer, turned out to be a butcher is a not how big head of pig slaughter.

I saw all this. Found that pigs fate was so miserable! Is this fate arranged? Or pigs caused by past delicious lazy? I found the "people" are so cruel. Oneself have so long pig, cruel to kill it. Ah, I found that at the moment I was so sad, so sad, so lost, so helpless. In nature there are many more miserable than this things are happening, perhaps this is fate, it is inevitable in the growing of a test.

Not often say that animals are friends of human beings? Not often say that people for the ethical treatment of animals, protect the earth? Maybe this is just for those rare animals! Those animals that almost nearly perish! Pigs in a country of the world, one city, a town, a village, or even a home, a person can see. Pigs are a lot of, is not worth to treat? Pig also is to have life, and human beings, it also know pain, also have feelings, also know how sad. People for the ethical treatment of animals! The animals as their friends, for they give a little love!

Animals are friends of human beings, like humans, are the people of the earth. Let us hands reach out, to protect, to help those who need help human friends!

一个周日的下午，我漫不经心地调着电视频道。突然，惨不忍睹的一幕进入我的视线：一个农民模样的人正拿着一根铁棍敲打什么，原来是一群屠夫正在屠杀一头不怎么大的小猪。

我亲眼目睹了这一切。发现猪的命运竟是这么悲惨!难道这是命运安排好的吗?还是猪前世的好吃懒惰造成的?我发现“人”竟是那么狠心。自己养了这么长时间的猪，竟然狠心杀掉它。哎，我发现此刻自己竟是那么的伤心，那么的悲痛，那么的迷惘，那么的无奈。大自然中还有很多比这更悲惨的事情正在发生，或许这就是命运，这就是在成长中不可避免的一次考试。

不是常说动物是人类的朋友吗?不是常说善待动物，保护地球的吗?可能这只是针对那些稀有的动物罢了!那些几乎将近灭亡的动物罢了!猪在世界的某个国家，某个城市，某个城镇，某个村庄，甚至某家某户都可以见到。猪是很多，多到不值得善待?猪也是有生命的，和人类一样，它也知道痛，也有感情，也懂得伤心。善待动物吧!把动物当成自己朋友，对它们付出一点爱吧!

动物是人类的朋友，同人类一样，都是地球的子民。让我们伸出双手，去保护，去帮助那些需要帮助的人类的朋友吧!

I have a dog, it is lovely, it is called Mimi. Every time I go home from school, Mimi always cruising around me, I will go to the kitchen to get a piece of meat to it, it lay on the floor to eat. My legs and then jump to bark "Wang "called, so I picked up Mimi, it is the opportunity to lick my hand, making me laugh.

I like Mimi, like puppies.

我有一条小狗，它很可爱，它叫咪咪。每当我放学回家时，咪咪总是围着我绕圈，我便去厨房拿一片肉给它，它就趴在地板上吃。然后跳到我腿上汪汪汪地叫，于是我抱起咪咪，它就乘机舔我的手，逗得我哈哈大笑。

我喜欢咪咪，喜欢小狗。

Russian Scientists Surrounded by Polar Bears

俄罗斯科学家被北极熊包围

Relief supplies finally arrived on a remote Arctic island where a group of scientists had been trapped in a weather station. Up to a dozen polar bears had surrounded the station on the island of Troynoy and set up camp approximately two weeks ago. The bears were becoming more aggressive over time, killing one of the stations dogs and breaking a window. On Wednesday, a helicopter that picked up supplies from a nearby vessel arrived with dogs and flares and was able to scare away the bears and allow the researchers to get back to work.

救灾物资终于抵达了偏远的北极岛屿，有一批科学家被困在那里的气象站中。大约两周以前，十几只北极熊将特洛伊诺伊岛(Troynoy Island)上的一个气象站团团包围，并在那里安营扎寨。随着时间的流逝，北极熊变得越来越有攻击性，咬死了气象站的狗，还打破了窗户。周三，一架从附近船只上携带犬和照明弹物资的直升机到达岛屿，能够将北极熊吓走，让科学家正常工作。

导语：人类正试图猎取野生动物以获取更大的利润，下面是yuwenmi小编为大家整理的优秀作文，欢迎阅读与借鉴，谢谢!

As is often read in the newspaper reports, wild life especially the rare species is threatened with extinction. Human beings are making attempts to hunt wild animals for a big profit., which, of course, results in a sharp decrease in the number of animals. So it is high time for us to take quick action to protect them. First of all, its quite necessary for every citizen to realize the importance of animal protection. Only by knowing its importance can people develop a sense of responsibility. People will surely take it for granted to have the duty to prevent any killing of wild animals. So a national publicity campaign should be launched, thus giving animals a good living environment. In addition, the government should pass some laws to forbid any hunting of rare animals. We dont expect anything harmful to wild life to happen again.

If everyone is involved in the protection of wild life, were sure man will be a good friend of animals rather than their enemy.

【参考译文】

正如报纸上经常看到的那样，野生生物特别是稀有物种面临灭绝的危险。人类正试图猎取野生动物以获取更大的利润，当然，这会导致动物数量急剧减少。所以现在是我们采取行动保护他们的时候了。首先，每个公民意识到保护动物的重要性是很有必要的。只有认识到它的重要性，人们才能产生责任感。人们一定会想当然地认为有责任阻止野生动物的捕杀。开展全国性宣传活动，为动物创造良好的生存环境。此外，政府应该通过一些法律，禁止猎杀珍稀动物。我们不希望发生任何对野生动物有害的事情再次发生。

如果每个人都参与野生动物的保护，我们相信人类将是动物的好朋友，而不是敌人。

A week ago， my best friend gave me a lovely cat. I love it very much. It is special. Its fur is black not yellow. So I call it little black. It has the same taste with me. We all like eating fish. So， after it comes to my home， nearly every meal will appear fish. I like playing with it. It always makes me laugh. Every morning， it will wake me up. It brings much happiness for me.

My favorite animal is the elephant, the elephant is mentioned often think of June 1 childrens day last year, my mother and I and cousin once took me to the zoo, where elephants level of protection, SanSiZhi, number, and I am from then began to fall in love with the elephant!

See elephants in the zoo, I saw the elephant for the first time, think of it like a wall body, elephant leg like four pillars big, like a nose like a big straws, all the food to the mouth; Although large body is scary, but its every move makes me feel so cute!

The elephant, its strength is very big, in Thailand, they will use the elephant to carry something, or as a means of transport, found that the elephant is really "yong jian", walking, sitting on its back and pitched feel, very interesting!

Because the elephant "strong power", I like this "monster", but cant keep the elephant in the home, otherwise I really hope to be able to raise an elephant, it must be very interesting!

My favorite animal is elephant, I like the elephant, because I can play with the baby elephant, eat at home, so I also like the elephant, I will also give the elephant do small house, small house is made of carton, I will call my cousin play with the baby elephant.

我最喜欢的动物是大象，一提到大象就会想到去年‘‘六一’’儿童节，我和妈妈和表姐曾经带我去动物园，在那里，大象一级保护动物，数量三四只，，而我就是从那时候开始爱上大象的!

在动物园看得到大象，我第一次亲眼看到大象时，觉得它的身体像一面大墙，象腿象四根大柱子，象鼻像一根大吸管，把食物通通送到嘴里;虽然庞大的身躯让人害怕，不过它的一举一动让我觉得很可爱!

大象，它的力量很大，在泰国，他们会利用大象来搬运东西，或者当作交通工具，发现大象真的很“勇健”，坐在它的背上行走，会感觉到摇晃颠簸，相当有趣呢!

因为大象的“强壮威武”，我喜欢这个“庞然大物”，可惜家中不能养大象，不然我很希望能养一只大象，那一定非常有趣!

我最喜欢的动物是大象，我喜欢小象，因为我可以和小象一起玩耍，在家里吃饭，所以我也喜欢小象，我还会给小象做小房子，小房子是用纸箱做的，我还会叫表妹和小象一起玩。

Grilled chicken. The roast duck. All kinds of meat, already is normal on table a "routine". Television also reported many save a national protected animal, encourages people from all over the world to protect animals. But, why do some people will do whatever it takes to save animals, and some will be on the table for people to enjoy? Not advocate protect animals?

The answer is very simple, because people at all costs to save animals is called "the state-level protection", and was called "poultry" on the table. Why is that? They are also lively individual life; There are also mom and dad love; a lovely kid The same is collectively known as animals. However, why? To protect rare animals, but more to eat. Side in the title of "animal protection", there are big mouth to bite a serve fish or fowl. Why the national birth will be protected, live more comfortable than some vulnerable groups, and poultry was born is raised, waiting for them is cruel, and then made into a variety of delicious, is on the table, is to eat their meat.

Isnt their life life? Why do this to them? If one day, in our own to be they kill, and then made into a variety of delicious, for them to enjoy, our own feelings of what?

Although I was not a great writer, cannot use a beautiful sentence touched your heart, but I want to say only one forever, also is the life should be respected, we have no right to decide the life and death of others, feeding them, at best, is the behaviour of a love.

Their life is life, watching, please protect your side weak life, thank you!

烤鸡;烤鸭;各种各样的野味，早就是餐桌上见怪不怪的一道“家常便饭”了。电视上也报道过不少拯救国家级保护动物的节目，提倡世界各地的人们要保护动物。可是，为什么有的动物人们会不惜一切代价去挽救，而一些就要被摆在餐桌上供人们享用呢?不是提倡保护动物吗?

答案很简单，因为人们不惜一切代价拯救的动物叫“国家级保护”，而被摆在餐桌上的叫“家禽”。为什么?它们同样是活泼可爱的生命个体;同样是有爸爸妈妈疼爱的乖小孩;同样是被人们统称为动物。可是为什么?稀少的动物要保护，而多的却要吃掉。这边打着“保护动物”的头衔，那边却大口大口地咬着鸡鸭鱼肉。为什么那些国家级一出生就要被保护起来，过着比某些弱势群体还要舒服，而家禽一出生就是养大，等待它们的就是残忍的虐杀，然后做成各式各样的美味，被摆在餐桌上，就是为了吃它们的肉。

难道它们的生命不是生命吗?为什么要这样对待它们呢?如果有一天，换我们自己要被它们杀掉，然后做成各式各样的美味，供它们享用，我们自己的感受会是怎样的呢?

虽然我不是什么大作家，不能用很美的句子打动你们的心，但我想说的永远只有一个：同样是生命就应该受到尊重，我们没有权利决定别人的生死，饲养它们，充其量就是一个爱心的行为举动。

它们的生命也是生命，看完，请您保护您身边弱小的生命，谢谢!

我家有只小狗，是我妈妈在我生日的时候送给我的生日礼物，我很喜欢它，妈妈给它取了个可爱的名字叫旺旺旺。

My family has a puppy. Its my mothers birthday present to me on my birthday. I like it very much. My mother gave it a lovely name.

每天我放学回来第一件事就是拿东西去喂旺旺，我妈妈说过，要和小狗做朋友，就必须要好好的对它。

Every day I come back from school, the first thing is to take things to feed Wangwang, my mother said, to be friends with the puppy, it must be good to it.

所以，我平时还会帮它洗澡和带它出去玩。旺旺可调皮了，一开始每次帮它洗的时候，它总是不愿意，每次都会把我的衣服弄湿，但我也没生气，妈妈说过，多帮它洗几次它就会习惯了。

So I usually shower it and take it out to play. Want to be naughty, and at the beginning of each time to help it wash, it is always reluctant to, every time I wet my clothes, but I did not angry, mother said, and more help it wash a few times, it will get used to it.

每天晚上吃完饭，我就会牵着小狗和妈妈一起到外面散步，带它到公园和其他的小狗仔一起玩，可是旺旺太淘气了，整天欺负隔壁的阿王，妈妈就说，以后不带它出去了。旺旺虽然有点淘气，可是我还是很喜欢它，我要永远和它做朋友。

Every night after dinner, I will be holding the dog and her mother went to the outside for a walk, take it to the park and other puppies playing together, but I was too naughty, bullying next O king, mother said, dont take it out. Wangwang although a little naughty, but I still like it, I will always be friends with it.

Every year on October 4th is the World Animal Day. It is proposed by the Italian monk St Francis in 12th century. He lives in the forests of Assisi Island for the long time, building a good relationship with the animals. So he asks people to express thanks to the animals on October 4th. He sets a good example for our human beings about how to deal with the relationship with animals. In order to memorize him and what he does, we make October, 4th to be World Animal Day. Nowadays, people from all over the world will hold various activities to celebrate on that day. The aim of this festival is to remind people to care for all animals and build a harmonious relationship with them.

每年的十月四日是世界动物日。它是由意大利修道士圣弗兰西斯在十二世纪提出的。他长期生活在阿西西岛上的森林中，与动物建立了良好的关系。所以他要求村民们在10月4日这天向动物表示感谢。他为如何正确处理与动物的关系树立了一个很好的榜样。后人为了纪念他和他所做的，我们把十月四号定为世界动物日。现在，在那一天来自世界各地的人会用各种活动来庆祝这一节日。这一节日的目的在于提醒人们关爱所有的动物，与他们建立和谐的关系。

I have a dog,his name is Joy.He is very lovely like other dogs.When he feels happy,he always wags his tail.When he wants to eat food,he often follows me until I give him something to eat.I really like him.When I feel sad,he often stays with me as if he knew why I was sad.Thanks to him,he puts me out of my misery,so that I can live happily.He let me know dogs are humans best friends.

It is known to everyone that the unrestrained slaughter of wild animals has diminished the number of some endangered species. More and more species are being driven to extinction every year. It is terrible to think that magnificent animals are being sacrificed to human vanity

There are already laws enacted to prevent the importation of rare animals and the products made from their flesh, skin and bones.

These laws must be strictly enforced. Violators of these laws must be severely punished .Moreover, the public must be informed about the natural treasures we stand to lose .If we don’t take immediate action, we will be depriving future generations of our most precious heritage.

In Taiwan, because most people do not understand the importance of wildlife, the wildlife is in a poor situation. We Chinese are fond of eating anything delicious, so there are many animals killed by hunters. People enjoy eating tigers, bears, birds, and lions, so there are fewer and fewer birds flying in the sky and fewer and fewer bears running here and there in the forest. Instead, we often see them for sale at the market. How poor they are! And how cruel we are!

In my opinion, we should try every possible way to preserve wildlife. First, no one is allowed to hurt any wild animal. Second, the authorities concerned should punish those who kill any wild animal. Third, we should pay more attention to those endangered species to protect them from being eaten. If we can do so, nature must become very beautiful.

My favourite animal is fish. Because they are very interesting. There are many kinds of fish. They are liveing in water very free. They are very colorful, some fish are red, some fish are white, and some fish are gold... So I like them very much !!!!

我最喜欢的动物是鱼。因为他们是非常有趣的。鱼的种类非常多。他们是在水中自由自在的生活。他们是五颜六色的,一些鱼是红色的,一些鱼是白色的,一些鱼是黄金色的……我非常喜欢它们! ! ! !

Rabbit is an cute kind of amimals.It has two long ears.They can make rabbits hear carefully.It also has a short tail，which makes rabbits so lovely.Rabbits likes eating carrots.If you feel lonely.You can keep a rabbit.It can be your good friend.

兔子是一种机灵的动物，它有两个长耳朵，它们可以让兔子清楚地倾听。兔子还有一个短尾巴,让兔子更可爱。兔子喜欢吃胡萝卜，如果你感到孤独，你可以养一只兔子，它会成为你的朋友。

Animals Need Protecting

Earths biological diversity is being fast decline of many species facing extinction. Threat to the survival of wild animals and plants is a major factor in habitat loss, business development, and wild animals and plants and their products in international trade. Resources are limited, it is necessary for the endangered species, to propose specific measures of protection level. We can formulate the corresponding endangered species laws, application to establish nature reserves, endangered species breeding centers, means of conservation biology, endangered species, the implementation of in situ conservation and ex situ conservation. At the same time, we must restrict international trade in Endangered Species of Wild Fauna and Flora, to make laws to protect endangered species.

Mark suddenly had a bad bellyache before class began this morning. His classmates immediately sent him to the Peoples Hospital nearby. In the hospital, the doctor gave him a medical check-up. The result of the examination showed that he was suffering from acute appendicitis and he needed an operation right away.

The monitor of his class quickly called Marks father and asked him to come to the hospital at once. After a while,Marks father came and the operation began in no time. Several days later,Mark recovered.

Many animals are in danger of dying out. As is shown in the chart, we can

see the number of animal species decreases faster and faster and this trend will

continue. From 1980 to 2010, at least 1 million animal species have disappeared.

Worse still, more and more wild animals are in great danger. It is not a piece

of sensational news; it is a fact, a harsh reality. Unfortunately, we may not

see these animals in the near future.

From the second picture, we can find some reasons. Why is the number of

animal species declining year by year? Apparently animals have become victims of

fashion industry. Animal skin has been used to make fashionable clothes and

these clothes sell at a high price. So some greedy people begin to kill animals

in a large quantity. This irresponsible behavior not only breaks the balance of

nature but also endangers the living environment of human beings.

As far as I am concerned, something must be done to stop this illegal

action. We believe "no buying, no killing". First, we must make concerning laws

to protect these animals in danger. Second, we must take some measures to

protect animals effectively. Animals are our friends and part of our

environment. Third, we should raise peoples awareness to protect animals and

our environment. In this way, we can build a harmonious society and ensure a

sustainable development.

1、Cats hide their claws.知人知面不知心。

2、Each bird loves to hear himself sing.鸟儿都爱听自己唱。（自我欣赏）

3、A gloved cat catches no mice.戴手套的猫，老鼠抓不到。（不愿吃苦的人成不了大事业。）

4、Scornful dogs will eat dirty puddings.狗再傲慢也会吃脏布丁。

5、Who will bwll the cat? 谁去给猫系铃？（谁愿意为大家冒风险？）

6、All cats are grey in the dark黑暗之中猫都是灰色的。（人未出名时看起来都差不多。）

7、It is a silly fish that is caught twice with the same bait.智者不上两次档。

8、Go to the sea, if you would fish well.不入虎穴，焉得虎子。

9、If water is noisy, there are no fish in it.咆哮的水中无鱼。

10、Fine feathers make fine birds.人要衣装，马要鞍。

11、Care kill a cat.忧虑愁死猫。

12、Dog does not eat dog.同类不相残。

13、A good horse cannot be of a bad colour.好马不会毛色差。

14、All are not thieves that dogs bark at.狗见了叫的不一定都是贼。

15、A bird is known by its note, and a man by his talk.听音识鸟，闻言识人。

16、The best fish swim near the bottom.好鱼常在水底游。

17、Let sleeping dogs lie.勿惹事生非。

18、A son never thinks his mother ugly,and a dog never shuns its owner’s home however shabby it is.儿不嫌母丑，狗不嫌家贫。

19、When the weasel and the cat make a marriage, it is a very ill presage.黄鼠狼和猫结亲，不是好事情。）

20、Barking dogs don’t seldom、bite.爱叫的狗很少咬人。

21、Birds of a feather flock together.物以类聚，人以群分。

22、It’s an ill bird that fouls own nest.家丑不可外扬。

23、Birds in their little nests agree.同巢之鸟心儿齐。

24、A bird in the hand is worth two in the bush.双鸟在林不如一鸟在手。

25、The cat shuts its eyes when stealing cream.帽偷吃奶油的时候总是闭着眼睛。（掩耳盗铃）

26、A cat has nine lives.猫有九条命；吉人天相。

27、Never offer to teach fish to swim.不要班门弄斧。

28、Kill two birds with one stone.一箭双雕；一举两得。

29、You cannot catch old birds with chaff.粗糠）。用粗糠捉不住老鸟。（有经验的人难骗。）

30、There are more ways of killing a cat than by choking it with butter.杀猫的办法很多。（达到目的的途径很多。）

31、A horse may stumble on four feet.马有四条腿，亦有失蹄时。

32、It is a poor mouse that has only one hole.狡兔三窟。

33、A speck of mouse dung will spoil a whole pot of porridge.一粒老鼠屎，坏了一锅粥。

34、A running horse needs no spur.奔马无需鞭策。

35、The mouse that has but one hole is quickly taken.只有一个洞的老鼠，很快就被抓住。

36、Dead dogs bite not.死狗不咬人。

37、There’s as good fish in the sea as ever came out of it.海里的好鱼多的是。

A triple bacon cheeseburger seems like a heart attack on a plate.

三层奶酪咸肉汉堡感觉吃完很容易让人突发心脏病。

So how can polar bears thrive on their version, seal blubber?

那么,北极熊是如何处理这些高热量食物的呢?

Turns out theyve stocked up on genes that let them clear fats from their blood.

结果显示它们储存在遗传基因里的信息使得它们能够清除血脂。

Thats according to a study in the journal Cell.

这是根据《细胞》杂志上的一篇研究得出的结论。

Polar bears are well adapted to life on the sea ice.

北极熊非常适应在浮冰上的生活。

Up to half their body weights fat, which gives them extra insulation and buoyancy, and provides them with a ready source of energy.

几乎占它们身重一半的脂肪足以使它们保暖并且维持体力，提供给它们一种易转化的能量。

But how can an animal so fat also be so fit?

但一种动物怎么能又胖又健康?

Researchers compared the genomes of polar bears with those of brown bears, and found that polar bears have accumulated genetic changes that boost their heart health and fat metabolism.

研究人员们通过比较北极熊和棕熊的基因，发现北极熊的基因组中积累了不少有利于心脏健康和脂肪代谢的遗传突变。

One gene in particular, called ApoB, helps move cholesterol out of the blood—where it causes problems in humans—and into cells.

特别是编码为载脂蛋白B的基因有助于清除血液中对人类有害的胆固醇转变成细胞代谢。

These genomic changes happened quickly, evolutionarily speaking.

这些遗传变化从进化的角度来讲发生的十分快。

Polar bears and brown bears diverged from a common ancestor less than half a million years ago.

北极熊和棕熊都来自于同一个祖先，它们是在大约50万年前左右开始向不同分支进化。

But if that seems super speedy, the ability to digest lactose didnt spread through human populations until we domesticated cows, just 10,000 years ago.

但是如果这种变化看上去十分快速的话，消化乳糖的酶逐渐进化到人类各个种群中也还是发生在大概1万年前我们可以驯化乳牛之后。

A moooving testament to the power of natural selection.

这是自然选择力量的证明。