濒危动物英语作文80词（精品20篇）

I have a little white rabbit. It is snow and white, really like a mass of white cotton. Eyes are very beautiful, like two rubies inlaid in the white face. Ears are very long, put up is particularly clever. It signed the front legs short and small, hind legs are fat and strong, so can only jump, can not run. Tail is also very small, almost can not see. It stands like a man.

I remember one time I pulled a radish from the yard, it did not even jump with me in front of me, while I do not pay attention to the mud with the mud to Diao away. I always do not want to let it eat unclean things, this time and as usual, we have done a fierce "struggle", of course I will win, when I put the clean radish in front of it, it thought me Throw in the towel, they triumphantly eat radish.

My little rabbit is so cute!

To protect animals, everyone duty! This shouldnt be a slogan, but a word should be deeply impressed all people in the heart of a wake-up call.

Once upon a time there was a first grade elementary student xiao Ming and his father go hunting outside every day, dont have time to study. As a result, his grades have been bad. Every night, his father will be to capture a few animals. His father to kill animals, xiao Ming is very sad. "Dad, dont kill animals again, you know how to kill animals is a serious matter? This will destroy the food chain, in the end, the damaged or we ah!" Xiao Ming said. His father stern said "so little know what? You have some time to get it! Your grade if you dont hunt, what to eat? How to send you to school?" Xiao Ming said that "every time that I study hard, get a scholarship, you dont hunt?" "Yes, as long as your scholarship, I dont hunt" from then on, xiao Ming is to study hard every day. Sure enough, in junior high school of time when school promised as long as he won first place in the examination will give him a scholarship. His father also keep your promise, no longer hunt.

Even a first grade of primary school children know the truth, isnt so much the hunter is in doubt? Has it ever occurred to you, if you are an animal, human will kill you without a reason, would you be willing to? It must be thousands would not! As the saying goes "do as you would be done by." You dont like, that the animals would be willing to? Because hunting, are now extinct, how many kinds of animals do you know? Already 800, the number looks small, but add up the number of each type of animal, you know how much is it? Have you had? Destroy the food chain, is no good to human beings.

Animals are priceless treasure for human nature, all animals are humans good friends, why cant harmonious to get along in the same home? Their survival and our survival, have a close relationship. From now on, start from around each of us, to protect the animals together!

保护动物，人人有责!这不该是一句口号，而是一句应该深深印在所有人心里的一个警钟。

从前，有一个一年级的小学生小明，他的父亲天天到外面去打猎，没时间管他的学习。因此，他的成绩一直都不好。每天晚上，他的父亲都会捕来几只动物。他的父亲这样残杀动物，小明很伤心。“爸爸，不要再杀动物了，您知道杀动物是一件多么严重的事吗?这样会破坏生物链的，到头来，受损的还是我们呀!”小明说。他的爸爸严厉的回答说“你这么小懂什么?有时间就好好弄弄你的学习成绩吧!如果不打猎，靠什么吃饭?怎么供你上学?”小明说“那我好好学习，每次都得奖学金，你是不是就不打猎了?”“对，只要你的奖学金，我就不打猎”从此，小明就天天都努力学习。果然，在初中的时候学校答应只要他考试得第一名的时候就会给他奖学金。他的父亲也信守诺言，再也不打猎了。

就连一个一年级的小学生都懂的道理，难道那么多的猎人就想不清吗?你们有没有想过，假如你是一只动物，人类无缘无故的就把你杀了，你会愿意吗?肯定是千万个不愿意。俗话说得好“己所不欲，勿施于人。”你自己都不愿意，那动物们会愿意吗?就因为捕猎，现在都有多少种动物灭绝了，你们知道吗?已经800种了，这个数字看起来是不大，但是把每种动物的数量加起来，你们知道是多少吗?你们算过吗?破坏生物链，对人类一点好处都没有。

动物是大自然留给人类的无价之宝，所有的动物都是人类的好朋友，为什么就不能和睦的相处在同一个家园里呢?他们的生存与我们的生存，有着密切的关系。从现在起，从我们每个人的身边做起，一起保护动物吧!

我最喜欢的小动物是小鸡。

My favorite little animal is chicken.

恰好，我家楼下307号就养了几只小鸡。每天我们经过时，这些小鸡都偏着脑袋看我们哩。

Just right, my house downstairs 307, raised a few chickens. Every day we pass by, the chicks lean on our heads.

小鸡全身毛茸茸的，很可爱。一身黄黄的羽毛像披着一件金黄的礼服。小鸡有一双尖尖的小嘴。圆圆的眼睛看人时还蛮有精神的呢。

The chickens are hairy and lovely. A yellow feather like wrapped in a golden dress. The chicken has a pair of pointed little mouth. The round eyes are quite spiritual when they look at people.

我没看到它们的耳朵，但是小鸡不可能没有耳朵。如果没有耳朵的话，那我们走过去时，它们怎么会偏着脑袋朝我们瞧呢?

I dont see their ears, but chickens cant have ears. If there were no ears, how could they lean on our heads when we walked by?

妈妈说，刚孵出的小鸡还只能吃小米粒，不能吃谷子或玉米，还要经常给它们喝水。要是有小虫子给它们吃，它们一定会长得更神气。

Mother said, the newly hatched chickens can only eat small grains of rice, can not eat millet or corn, but also often give them water. If they had worms, they would have grown stronger.

我多喜欢这些可爱的小鸡呀。但是爸爸妈妈说现在还不能养，不养好的话，它们会死的。

I love these lovely chicks. But mom and

Everyone knows animals are our friends.So we should be friendly to them.But some people kill the rare animals,such as pandas,golden monkeys and so on in order to get money.It will cause these animals to disappear soon.I think our government should punish those people severely who kill the rare animals.It is our duty to protect the endangered animals.

My favourite animal is dog.They are very cute.There are many kinds of dogs.Some of them are big and some of them are small,some of them are white and some of them are black.I like the big dogs,like a bulldog,because they can protect me.I dont have anydog yet,because my mum does not like dogs.she think they are dangrous.I Will buy a dog after I become older.

Animals are peoples friends, we should protect them.

If there is no animal on earth, there would be no human. Animal is a most of the earths food chain, if animals disappeared, we human beings will be extinct. For example: the frog disappeared, there is no animal pests to catch paddy fields, crops will not grow, humans have no food; If there is no tiger, the rabbit will excess breeding, our food is likely to be a rabbit eat didnt; If there is no owls, mice will encroach on our territory...

The earth is a big family, not lack of anyone, without animals, we humans situation, we should all band together and protect small animals.

动物是人们的朋友，我们应该保护它们。

地球上如果没有动物，就没有人类。动物是这个地球生物链的一大部分，如果动物消失了，我们人类也会灭绝。例如：青蛙消失了，就没有动物去捉稻田的害虫，农作物也就无法生长，人类就没有食物;如果没有老虎，兔子就会超额繁殖，我们的粮食就可能会被兔子吃没了;如果没有猫头鹰，老鼠就会侵占我们的地盘……

地球是一个大家庭，缺谁都不行，如果没有动物，我们人类的处境可想而知，我们大家应该团结起来，保护小动物。

When I was very small, I could see many birds flying in the sky when I looked at the sky, but as I grow up and move to the city, I find less birds in the sky. It is because the environment has been polluted and many birds are dying. We can do small things to protect the environment, so that the animals can live with us.

在我很小的时候，每当我仰望天空的时候，我都可以看到许多鸟在天上飞，但是当我长大后，搬到了城市，我几乎没见过有鸟儿在天空中飞。因为环境被污染了，许多鸟面临死亡。我们要做些小事来保护环境，让动物能和我们共存。

导语：你有养过什么宠物呢?它们是怎么跟你成为好朋友的?下面是yuwenmi小编为大家整理的相关英语作文，欢迎阅读与借鉴，谢谢!

I have a pet. It is aPigeon. It has got white and gray feathers, a red mouth and two small eyes. It’s cute.

I found it near a park. Its leg was injured and couldn’t fly. I took it home and cured it. Every morning, I give it some water and small pieces of bread. It gets stronger and stronger.

Now the pigeon has become my best friend. When I come home from school, it always flies to me and rests on my shoulders, it likes to talk to me. It makes my spare time colorful.

【参考翻译】

我有一只宠物。它是一只鸽子。它有白色和灰色羽毛，一个红色的嘴和两个小眼睛。很可爱。

我在公园附近找到的。它的腿受伤了不能飞。我把它带回家治愈它。每天早上，我给它一些水和小块面包。它变得越来越强壮。

现在鸽子成了我最好的朋友。当我从学校回家的时候，它总是飞到我的肩上，它喜欢和我说话。它使我的业余时间丰富多彩。

I like the small animal is a puppy, it whole body covered with white hair, like a regiment cotton candy; The eyes are round, like two gem; The ear is a semicircle, nose is black, short tail, very lovely.

I love to eat bones to it, it will be a piece of a piece, a short period of a short to chew. After it finished eating bones, will be barked and called several voice, as if to say: "small host, thank you."

Whenever I go to school, she will always send me a little way, until I pretended to be angry hit it two or three, it quietly ran home. It not only can drive me to school, also like to race with me, very fast, sometimes, left me for a long walk. At ordinary times, it seems very timid, but when he saw a stranger, but not brave to open eyes of a strangers every move, also called out when key,

It is really a clever and loyal dog!

When I come home from school, but a dog is the most happy time. As long as the dog at home, Im on my way home from school to home some way can always see the dog at the door waiting for me. It saw me, will be shaking his tail to me on the way to here. And then bouncing around after my people predecessors. So clever dog can not likable?

I wish to raise the dog to the white white fat, because its so cute.

我喜欢的小动物是一只小狗，它全身长满白色的毛，像一团棉花糖;眼睛是圆溜溜的，像两颗宝石;耳朵是半圆形，鼻子是黑色，尾巴短短的，很可爱。

我给它爱吃的骨头，它会一块一块，一小段一小段地啃。它啃完骨头后，就会汪汪地叫几声，好像在说：“小主人，谢谢你。”

每当我去上学，她总是会送我一段路程，直到我假装生气打它两三下，它才乖乖地跑回家去。它不但会送我去上学，还喜欢和我一起赛跑，跑得十分快，有时，把我落了一段路程。平时，它看起来很胆小，但看见陌生人时，却又不失威猛地睁着双眼紧盯着陌生人的一举一动，关键时还会大声叫，

它真是一只机灵又尽忠职守的小狗啊!

我放学回家时，可算是小狗最开心的时候。只要小狗在家，我在放学回家的路上离家门口还有一段路总可看见小狗在门前等着我。它看见了我，就会摇着尾巴往我这里飞奔而来，然后在我人前人后蹦来蹦去。这么机灵的小狗能不讨人喜欢吗?

我很希望把这只小狗养得白白胖胖，因为它实在太可爱了。

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 parrot. Its name is Nancy. I call it Nancy， because it is my passed grandmother’s name. I love her and hope she can accompany with， so I name my parrot her name. Nancy is very beautiful. Its fur is special comfortable. It is clever， too. At first， it can’t say any words， but now it can say many words. Like， good morning， good afternoon， good night， good bye and so on. it learns fast. I love it very much.？

Protecting the Wild Animals

Last week, I saw a very impressive documentary about panda. A professor studied panda in the early 1980s went to the wild life and kept trace of wild giant panda for many years. As a result, he found that it was human being that made these lovely animals die out. At that time, many people believed that giant panda became less because of the low rate of newborn babies. But it was not true. People cut trees for making profit at that time. Panda lose homeland and they lacked of food. Thanks to these valuable data, the government took the policy to protect the animals. So today, the number of giant panda is increasing. People realize the importance of protecting the environment and it is the best way to protect wild animals, they are the indispensable part of the nature.

上周，我看了一部令人印象非常深刻的关于熊猫的纪录片。一位教授在20年代80年代早期就开始研究熊猫，他到野外生活，多年寻找野生大熊猫的踪迹。结果，他发现，正是人类，让这些可爱的动物面临灭绝。当时，许多人认为，大熊猫变少是因为新生儿的低出生率。这是不正确。人们为了利益砍伐树木，熊猫失去了家园，也没有食物吃。多亏了这些有价值的数据，政府采取了政策去保护它们。所以现在，大熊猫的数量正在增加。人们意识到保护环境的重要性，这也是最好的方法来保护野生动物，因为它们是大自然不可或缺的一部分。

It was a fine day today and the sun was bright. I visited Beijing Zoo with my classmate, He Song. The animals were so interesting that all the people loved them. When a bear asked for some food by waving its ann, a visitor threw something to it. At once I went up to him and said without thinking,Dont do that. Its bad for it. If you really love them, take good care of them. His face turned red and answered he wouldnt do that again.

今天是个风和日丽的好天，我和同学贺松去了北京动物园。动物们是那么可爱，大家都非常喜欢它们。一只熊挥动着胳膊向人们要吃的，一个游客就投进去了什么东西。我想都没想就走过去说：“不要那样做。你的做法对它们没好处。如果真的喜欢它们，就应该爱护它们。”他的脸红了，并且回答说他不会再那么做了。

My Dog

1、 My Dog Is Fun I have a cute dog in my home.It is only 1 year old.It is very activity. It always runs in the house and makes noise.when I walk my dog in the park , it usually plays in the grassland and makes itself dirty. So I always wash it when I come back home. In the evening when I do my homework , it stays on my feet quietly. When I finish my homework , it jumps to me to give me a surprise. It is very fun. Do you think so?

2、I have a dog. My dog name is DuDu. DuDu is 9 years. DuDu is fat. It wears a white coat. DuDu has two big eyes and two small ears. It has one short mouth. My dog is smart. I like my dog. Do you like him

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.

在台湾,因为大多数人不了解野生动物的重要性,野生动物是在一个贫穷的情况下。我们中国人喜欢吃什么美味,所以有许多动物被猎人杀害。人们喜欢吃老虎,熊,鸟,和狮子,所以有越来越少的鸟在天上飞,越来越少的熊在森林里到处跑。相反,我们经常看到他们在市场出售。他们是多么可怜!我们是多么残酷!

在我看来,我们应该尝试每个可能的方法来保护野生动物。首先,没有人可以伤害任何野生动物。其次,有关当局应该惩罚那些杀害野生动物。第三,我们应该多注意那些濒危物种保护其不被吃掉。如果我们能这样做,自然必须变得非常漂亮。

Many wild animals are facing the danger of extinction, because the environment that they are living in has changed greatly. For example, with the developmet of cities, the using of insecticide and serious pollution, their living areas have become narrowcr and narrower. Many of the wild animals, now are confronted with food crisis. At the same time, man is killing off species just for getting their fur, skin, horns, teeth and meat.

许多野生动物正面临绝种的危险，因为它们生活的环境发生了极大的变化。例如，随着城市的发展，杀虫剂的使用和严重的污染，他们的生活区域变得越来越狭小。许多野生动物，现在面临粮食危机。同时，人类正在屠杀野生动物只是为了获得它们的皮毛，皮肤，角，牙齿和肉。

In order to protect our resources of ecology, people should realize that the loss of any species is at least the loss of source of knowledge and a source of natural beauty. There fore, measures of the following should be taken: pollution standards are made to keepdown poisons; killing off certain rare species is prohibited; national parks should be set up as wild life, reserves.

为了保护生态资源，人们应该意识到任何物种的缺失，至少意味着知识资源和自然美的缺失。因此，本应采取以下措施：制订污染标准以降低有毒物质;严禁杀害某些稀有物种;应建立国家公园作为野生动物，保护区。

Only if we human beings take some drastic measures can wild animals be preserved.

我们只有采取一些有力措施，才能保护野生动物。

My favorite animal is dog, my family has a puppy. His name is wangwang, he that is yellow, is really beautiful. He has a pair of bright eyes sparkly.

His two big ears perked up really high like a birds wing, but air. Sometimes also shake his tail to show your tongue with me, where I went with it, really like a small heels. I patted him on the head, it is licking my fingers, I feel itchy. Lovely!

But he has time, low head, let me feel very strange, but I dou dou it his mood suddenly. This is my dog barked. It is very cute!

It was a fine day today and the sun was bright.I visited Beijing Zoo with my classmate， He Song.The animals were so interesting that all the people loved them.When a bear asked for some food by waving its ann， a visitor threw something to it.At once I went up to him and said without thinking，Dont do that.Its bad for it.If you really love them， take good care of them。 His face turned red and answered he wouldnt do that again。

Heard the story of the tree a tiger? People use glue to stick to a tree tiger first, and then with the help of their kind nature, attract more tiger fur expensive tree. The overlord of the world, mankind is a great shame!

Since the childhood, I grew up with dogs, because dogs are mans most loyal friend. When I and my grandma often see grandma unprovoked kicked the dog, whenever at this time, I will be to grandma Shouting: "how can you kick the dog grandma?" But how can you listen to grandma? Look at the pathetic little dog, I cant help but nose a acid: because we are human in the earth is to get the ability? Does the dog have dignity? For those self-righteous humans, I have nothing to say! Animals are mans most loyal friend!

Why can only to the snake bite? Know why cats catch people? Not because this is the essence of them, but because they are afraid of human, afraid of the cruel devil! To stop bullying, let us together to protect animals!

听说过树虎的故事吗?人们用胶水先粘住一只树虎，然后借助他们善良的本质，引来更多皮毛昂贵的树虎。这对世界的霸主----人类可谓是极大的耻辱!

从小，我就是和小狗一起长大的，因为狗是人类最忠诚的朋友。我和奶奶在一起时常常看见奶奶无缘无故的踢小狗，每当这时，我都会对奶奶大吼大叫：“奶奶你怎么能踢小狗呢?”可奶奶又怎么能听得进去呢?看着这只可怜兮兮的小狗，我不禁鼻子一酸：因为我们是人类就能在地球是为所欲为了吗?难道小狗就没有尊严吗?对那些自以为是的人类，我无可奉告!动物是人类最忠诚的朋友啊!

只能够到蛇为什么会咬人吗?知道猫为什么会抓人吗?不是因为这是他们的本质，而是因为它们怕人类，怕那些残忍的恶魔!不要再欺负弱小了，让我们一起保护动物吧!

nimals are natural resources that people have wasted all through our history. Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.

Why should people care? Because we need animals, and because once they are gone, there will never be any more. Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems. For example, when farmers killed large numbers of hawks, the farmers stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.

Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger. Quite a few countries have passed laws. These laws forbid the killing of any animal or planton the danger list. Slowly, the number of some animals in danger is growing.

动物是自然资源，在整个历史过程中，人类一直在糟蹋着这种资源。人们杀死动物，获得它们的皮毛，把它们当作食物或运动方式，或者只是因为它们碍事。成千上万种动物已经从这个地球上永远地消失了。现在另外上百种动物也上了濒危动物名单。仅荚国大概就有170种被认为处于危险当中。

为什么人们应该感到担忧呢?因为我们需要动物，因为它们一旦消失，就永远不会再出现。动物不仅仅是漂亮或有趣。它们不仅仅是人类的食物来源。在维持自然平衡中，每种动物都有其作用。毁灭某种动物会导致许多问题。比如，农民们如果杀死为数众多的鹰，他们谷物和粮食的仓库就会受到老鼠和田鼠的破坏。 为什么?因为鹰吃鼠类，没有鹰控制它们的数量，鼠类就会迅速繁殖。

幸运的是，有些人正在努力帮助拯救这些动物。有些组织筹钱以便人们了解这一问题。他们也努力使政府通过保护濒危动物的法律。很多国家已经通过了法律。这些法

律禁止杀害濒危名单上的动植物。某些濒危动物的数目正在慢慢地不断上升。

When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bears spend the summer fasting. At least, thats whats supposed to happen. As the planet warms, the warmer ice-free season is getting longer and longer. So whats a hungry bear to do?

Scientists once thought that polar bears might survive by supplementing their pinniped diet by turning to terrestrial foods like snow geese, their eggs and caribou.

"Weve had this debate in the literature about whether terrestrial foods are nutritionally relevant to polar bears during the on-land season when the ice has melted."

University of Alberta biologist Nick Pilfold.

"And weve known for a long time, going back to research in the early 70s, even going to back to early explorer logs, that polar bears will consume terrestrial based foods. But the debate was always whether those foods actually add up, energetically." In other words, do these substitutes provide enough nutrition to make up for the lost seals?

To find out, Pilfold and his colleagues estimated the weight lost each day by polar bears in the wilds of western Hudson Bay during the ice-free season, when they could ostensibly be chowing down on terrestrial foods. Then they compared that to the weight lost by bears that are temporarily held in Manitobas Polar Bear Alert Program.

While captive, the bears do not eat. They drop about one kilogram each day. But the wild bears, who had access to the Arctic snack bar, lost the same amount of weight each day. The results are in the journal Physiological and Biochemical Zoology.

"Which is really saying that the terrestrial foods do not have dense enough energy to offset the mass loss. So this idea that bears can just switch from eating sea ice–based food to land food and thats going to help supplement against longer ice-free seasons, that really doesnt show up in the data."

The problem is that polar bears evolved to rely on the marine diet.

"The food on land is protein and carbohydrate based, and the food the polar bears really focus on is fat. Fat is the name of the game for these bears; theyre highly adapted to absorbing that fat into their system and putting it onto their body as body mass, so they can fast on it later on. And the only thing thats going to provide them with that type of fat are marine mammals. And they can only access those marine mammals when theres sea ice."

Adult males can go eight months without food. But younger, sub-adult bears, which are no longer nursing and must hunt, cant last as long without sea ice. So as the Arctic warms, younger polar bears will disproportionately die out. Leaving the species survival in doubt.

北冰洋在秋季结冰以后，北极熊就会出发去寻求它们最喜欢的食物：富含脂肪的海豹和胡子海豹。海冰在夏季开始融化断裂。这使北极熊在夏季无法吃到美味的海豹，所以它们进入禁食期。至少，情况应该是这样。但是由于地球变暖，温暖的无冰季节越来越长。那饥饿的北极熊要怎么办?

科学家曾经认为，北极熊可能会转向陆地上的食物来补充它们对鳍足类动物饮食的需求，进而生存下去，这些陆地食物包括雪雁、雪雁蛋和北美驯鹿。

“文献中有过这类辩论，即在寒冷融化时陆地食物是否能满足北极熊的营养需求。”

尼克·皮尔福德是加拿大阿尔伯塔大学的生物学家。

“通过上世纪70年代初的研究，还有早期的探险者日志，我们很早以前就知道，北极熊会以陆地食物为食。但是辩论的焦点在于，这些食物是否能增加北极熊的能量。”换句话说，这些替代食物能否为北极熊提供足够的营养，弥补不能进食海豹带来的损失?

为了解开这个疑惑，皮尔福德及同事对西哈德逊湾荒野地区的北极熊在无冰季期间每天失掉的体重进行了估算，从表面上看，北极熊在这段时间食用了陆地食物。随后，他们将这一数据与通过马尼托巴北极熊预警计划暂时捕得的北极熊所失掉的体重进行了对比。

在被关期间，北极熊不吃东西。它们的体重每天大约下降1公斤。虽然野生北极熊能享用北极“小吃”，但是它们的体重每天也同样会下降1公斤。这一研究结果发表在《生理学和生化动物学》期刊上。

“显然结果表明，陆地食物不能为北极熊提供足以抵消大量损失的能量。所以，北极熊可以从食用海冰下面的食物转向食用陆地食物，并帮助它们对抗日益延长的无冰季这个观点，并没有在这项数据中得到证明。”

问题是，北极熊进化成了依靠海洋食物的动物。

“陆地食物以蛋白质和碳水化合物为基础，而北极熊需要的食物以脂肪为主。脂肪是这些熊真正需要的东西;它们高度适应的情况是，将脂肪吸收进它们的系统中，然后把这些脂肪放在身上以增加体重，这样它们之后就可以依靠这些脂肪来度过禁食期。唯一能提供给北极熊这种脂肪的就是海洋哺乳动物。但是它们只能在有海冰时食用到这些海洋哺乳动物。”

成年北极熊可以8个月不进食。但是小一些的未成年北极熊已经不再被哺育，它们必须要去猎食，可是它们不能在漫长的无冰季期间一直不进食。所以，随着北极地区变暖，较小的北极熊将会大批死亡。这使这些物种的生存成为问题。