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英语作文在动物园动物在做什么3o词(汇编20篇)

书信是一种向特定对象传递信息、交流思想感情的应用文书。“信”在古文中有音讯、消息之义,如“阳气极於上,阴信萌乎下。”以下是小编整理的英语作文在动物园动物在做什么3o词作文,欢迎大家借鉴与参考!

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保护动物英语作文AnimalsNeedProtecting

全文共 1305 字

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Animals 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 plant on the danger list。 Slowly, the number of some animals in danger is growing。

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篇1:保护动物英语作文100字

全文共 806 字

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I am a student from Xinhua High School in Chongqing,China. Informed that you have a vacancy for a student to serve as the spokesman for animals, I cannot resist my inner excitement,hoping to seize the opportunity to do something for animals .

In my mind,nothing can delight me so much as caring for animals. Wherever I go and whatever I do, I usually keep in mind that animals are angels from the heaven, which bring us endless comfort and pleasure. I have been a panda lover since my childhood. Panda is so lovely that brings fun to people and they are regarded as the treasure of our country. Unfortunately,such a rare species is now faced with the danger of being extinct。What I am eager to do is to raise people’s awareness of animal protection and appeal to more people to care for our earth companies.

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篇2:三年级英语动物日记

全文共 327 字

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Animals are our friends, they live together with us on the same planet, we should take care and protect them, and they let us know we do not know many of the knowledge.

When we want to animal fur and all the time, until you want to protect you when they have been cruel extinction, and animal protection is to protect ourselves.

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篇3:保护动物的英语

全文共 1795 字

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Recently, our efforts to protect wild animals was questioned by the public,

because the news is keep reporting that more and more wild animals was killed by

human beings, especially the very precious one. Innocent animals was dead for

their meat, fur and tooth, it was just used to fill up human beings desire. In

my point of view, the wild animals were protected effectively still has a long

way to go.

Firstly, people should try harder to make a better place for animals. The

land where the wild animals live was deprived by human being. For hundreds

years, people cut the trees to make land for their living and farming, wild

animals homeland was took, they have no choice but run away. What is more,

human beings break the food link in nature; wild animals can not find enough

food to keep alive. There is no doubt that the destruction of nature has become

a big problem to kill wild animal, for instance, a polar bear was starved to

death because of the greenhouse effect, the ice was melt away, the seadog and

fish that polar bear like to eat are far away from them. For those reasons,

people should protect the environment first if they want to protect wild animals

effectively.

Second, no buying, no killing. Some rich people like to wear fur coat, they

treat it as a status symbol, especially for rich woman, they think animal fur is

beautiful and warm, they will never consider that the fur they wear for years is

the skin that animal wear for their whole life, and they knew how bloody when

people took the fur from animal but they choose to ignore it. If people do not

buy the fur and tooth, lots of wild animals will be survived.

In sum, wild animals are our friends, we should give back and protect their

homeland, and stop buying their body part, or our future generations will see

them in zoo and museum.

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篇4:小学生介绍动物的英语作文

全文共 1918 字

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On Saturday, I went to my grandparents house to play, entered my grandpa said to me: "home to a puppy." I ran quickly excitedly to the kennel.

This little guy is sleeping, I to control his feeling excited, could not help but to touch it by hand, but who knows, the puppy vigilance is so high, my hands touched it hair, it is all of a sudden I woke up to now. It eyes, big carefully look at me, as if to say: "who are you? How do I havent seen you?" I see, oh! Big round eyes, a small nose, cherry small mouth, not fat or thin face, and a pair of big ears and a air shook tail. In the summer it will lick up scattered cooling, is really a handsome boy!

After dinner, I also want to see this little one to eat, then took a piece of meat on the ground, I thought to myself, so delicious it must be very like it. But to his surprise, its just to smell the smell, and go to the side. I think, if it is afraid of being seen just refused to eat. Then, I hid behind the door, secretly observe it. Sure enough, little guys walking slowly in the past, and look at the then eat it with relish. It ate a piece of meat, I then from behind the door to come out and play with it. I threw a ball out of the distance, said to it: "help me to pick up the ball back!" It seemed to understand my words, kicking ran in the past, with his mouth put the ball has been sent to my side, and in this way, we are happy to play up.

My dog is so cute!

星期六,我去爷爷奶奶家玩,一进门爷爷就跟我说:“家里来了一只小狗。”我赶紧兴奋地往狗窝跑去。

这个小家伙正在睡大觉,我控制不住自己激动的心情,忍不住用手摸了它一下,可谁知,小狗的警惕性那么高,我的手刚碰到它的毛,它就一下子被我给惊醒了。它把眼睛睁得大大的,仔细地看着我,仿佛在说:“你是谁呀?我怎么没看见过你呢?”我一看,哟!圆溜溜的大眼睛,小小的鼻子,樱桃形的小嘴,不胖不瘦的脸蛋,还有一对神气的大耳朵和一条摇个不停的尾巴。夏天的时候它会把舌头舔出来散散热,真是一只帅气的小家伙呀!

吃完饭后,我也想去看看这小家伙吃东西的样子,便拿了一块肉放在地上,我心想:这样美味它一定很喜欢吧。但出乎意料的是,它只是去嗅了嗅,又走到了一边。我想,是不是它怕被人看到才不肯吃呢。于是,我就躲在了门背后,偷偷地观察它的动静。果然,小家伙慢慢地走了过去,四面看了一下便津津有味地吃了起来。看它吃完了一块肉,我便从门后走出来和它一起玩了起来。我把一个球扔到了远处,对它说:“帮我去把球捡回来!”它仿佛听懂了我的话,飞快地跑过去用脚踢,用嘴顶把那个球一直送到了我的身边,就这样,我们高兴地玩了起来。

我的小狗实在是太可爱了!

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篇5:关于保护动物的小学生英语作文

全文共 709 字

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Animals are our best friends. But there are many bad things about them. So we should try our best to protect animals.

First, let us know the status of the animal. Now, animals are facing very great danger. For example, there are many kinds of animals will die out. And there are many people eat precious and wild animals. They are nasty. As students, we should stop this behavior and protect animals.

Then, let us know we should how to protect animals. We should protect they habitat. If you see other people mindlessly trample animal homes, nicely remind them of the damage theyre causing. We can not also eat some wild animals. We should ask other people to protect them, too. Let we protect animals together!

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篇6:英语作文:我最喜爱的动物

全文共 871 字

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导语:你最喜欢的动物是什么呢?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!

My favorite animals are swans.they are white.they can swim very well.I think they look like a beautiful girl in a white dress.They have a pair of wings and they can also fly well.I believe they are angles from the sky.they bring us love and make us happy.They are always friendly to us.We cant hurt them,because they are our friend.I love them!I like dogs,too.they are not beautiful,but they are the best friends.they keep the thieves away.Dogs have the best listening and eyes.they can hear in the nosiy,see in the dark.If we are in danger,they will help us at once.And they dont mind their lives.So,I love them.

【参考翻译】

我最喜欢的动物是天鹅都是白色的可以游得很好。我认为他们看起来像穿着白色衣服的美丽的女孩,有一双翅膀,它们也会飞。我相信他们是从他们的角度给我们带来爱和快乐。他们一直对我们很友好。我们不能伤害他们,因为他们是我们的朋友。我爱他们!我喜欢狗,它们不美丽,但他们是最好的朋友,把小偷吓跑了。狗有很灵敏的眼睛能听到在闹市,在黑暗中看到。如果我们有危险,他们会立刻帮助我们。他们不介意自己的生活。所以,我爱他们。

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篇7:游动物园英语作文

全文共 589 字

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Today is Sunday. Its sunny today . I go to the zoo with my mother. I can see many animals . There are tigers ,lions ,pandas ,snakes and many more. Look ! The pandas are over there . Theyre from China . Look at the baby panda ! Its climbing trees. How cute it is ! I love pandas.

Next, we go to see the lions .The lions are so strong . Their mouths are too big. The tigers ae next to them. They are from Asia. They are yellow. At last,we go to see the monkeys . Some are climbing moutains , some are eating bananas . THey re so much fun !

I see many animals at the zoo and I m so happy today!

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篇8:世界动物日的英语作文

全文共 888 字

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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。

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篇9:保护动物的英语作文

全文共 2227 字

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When it comes to animals, people just want to go back to kill to eat their meat and scraping their fur to make money, but never thought of human is because the treatment of animals, such as disorderly turn reduces day by day the kinds of animals, and some animals have arrived "endangered" according to news reports: wild Siberian tigers in China less than 500 only, and only about 47 to 690000 African elephants, the Yangtze finless porpoise is less than 1500 head, while the eastern cougar extinct, bering sea cows also extinct, also make the biosphere and suffered severe damage to the food chain, which are human crimes committed in the earth, we need to protect these beautiful creatures, to protect the biosphere, protect the food chain.

In order to protect the animals; Countries in the region to build the zoo; In addition, in some areas also establish nature reserves and scenic spots. Also has the provincial forestry bureau and the municipal forestry administration in provincial regions; And in the forest with police station; Countries with the level of national grade a few animals in the animal kingdom; Separately promulgated and issued by the state laws to protect animals and files.

If human repeat ones mistakes, then the home to the survival of humans will be destroyed by human hands.

We have to live like animals, if we kill all the animals on the earth, eventually hurt ourselves.

We is a friend of animals, animals are our friends, is a friend of survival in survival.

We want to protect animals, let them give us the benefit, its our duty to protect animals, so it is urgent to protect the animals.

I come to the conclusion that a rong shame: "in order to protect the animals, ashamed of killing animals".

一说到动物,人们就想捕回去杀死吃它们的肉和刮下它们的皮毛来赚钱,可是人类万万没有想到的是由于乱捕滥杀等对待动物,使得动物的种类一天天减少,而有的动物已经到达“濒临灭绝”据新闻报道:野生东北虎在我国不足500只、而非洲象只有约47至69万只、长江江豚不到1500头、而东部美洲狮已经灭绝、白令海牛也已经灭绝、也使生物圈和食物链遭到严重破坏,这都是人类在地球上一一所犯下的罪行,我们要保护这些美丽的生灵、保护生物圈、保护食物链。

为了保护动物;国家在各个地区建立动物园;除此之外,在一些地区还建立自然保护区和自然风景区;另外还在各省各地区设有省级林业局和市级林业局;还有在森林设有森林派出所;国家在动物界设有国家几级动物的级别;国家还分别颁布和颁发了保护动物的法律和文件。

如果人类一错再错下去的话,那么这个人类赖以生存的家园就会毁于人类手中。

我们和动物一样都要生活,如果我们把地球上的动物全部杀死,最终伤害了我们自己。

我们是动物的朋友,动物也是我们的朋友,是生存在赖以生存的朋友。

我们要保护动物,让它们给我们造福,保护动物是我们的责任,保护动物刻不容缓。

我总结出一条一荣一耻:“以保护动物为荣,以捕杀动物为耻”。

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篇10:动物园动物表演的

全文共 333 字

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周末的一天,动物们在公园里面大集合,它们要举行一场歌舞会。主持人小猴子一边吃桃子一边跳跃着,突然它停下来说:“先生们、女士们,大家好,歌舞会现在开始。”

首先,有请孔雀女士为大家表演舞蹈,她走到舞台中央,抖动着她那五彩缤纷的翅膀翩翩起舞,仿佛在我们的眼前挂上了一幅美丽的图画。接下来海豹也在水里面顶着球摇摇摆摆地游来游去。紧接着小熊也在舞台上翻起了跟头,耍起了杂技。主持人吃完一个桃子接着说:“现在请大象上台为大家表演节目。”大象得意洋洋地走到舞台中央,拿起大喇叭吹起了迎宾欢迎曲。这时小狗也在树下一边荡着秋千一边拍着手唱着:“再过三五年我们再相会,重看天空中的彩云飞......。”

啊! 动物们的表演简直是太精彩了!我看着它们幸福、快乐、和谐的样子,我也会心的笑了。

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篇11:保护动物英语作文

全文共 1416 字

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Now, some animals have disappeared, and then take crocodile is close to extinction, though very fierce, but humans are more fierce. Because of some organs from animals has the prominent economic value, thus become a subject of human plunder use, become the main factor of extinct animals. Crocodile with sharp teeth, and huge appetite for food, we all said the crocodile, but more afraid of human, the crocodile in the eyes of human, the crocodile can be made into the luggage, handbags, wallets, shoes and other goods, so the crocodile, has now become almost extinct animals.

Animal friends, a lot of destruction of human will have serious adverse consequences, ecological environment caused by serious imbalance, so that the human living environment is destroyed. Eliminate animal, is to eliminate human oneself, if one day the animals in the world are gone, that human can survive? To protect animals, cherish this nature of every creature! Let us start from now, starts from me, to protect the animals, make the world a better place! To protect animals, is to protect human oneself.

现在,有些动物已经灭绝了,就拿快要灭绝的鳄鱼来说,虽然很凶猛,但人类更凶猛。就是因为有些动物身上的器官具有突出的经济价值,由此成为被人类掠夺利用的对象,成为动物灭绝的主要因素。鳄鱼长着锐利的牙齿,和硕大的食物胃口,我们都说鳄鱼可怕,但鳄鱼更怕人类,在人类的眼中,鳄鱼皮可以制成行李箱,手提包,钱包,鞋等物品,所以鳄鱼,现在已经成为快要灭绝的动物了。

朋友们,动物的大量毁灭对人类将产生严重的不良后果,造成生态环境严重不平衡,从而使人类的生存环境遭到破坏。消灭动物,就是在消灭人类自己,如果有一天世界上的动物全都消失了,那人类还能生存吗?要保护动物,珍惜这自然界里的每一个生灵吧!让我们从现在做起,从我做起,保护动物,使世界变得更美好吧!保护动物,就是保护人类自己。

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篇12:对动物关爱的英语作文

全文共 549 字

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Please love our animals, we have a lot of animals around us, such as: stray dogs, stray cats, etc. They have also been favored, and now why they wandering out, that is not because we humans? We put them away from the side, one by the owner only abandoned the little mind how to think, humans have not thought about their life and death. Some people are sad because of a dead bird, but no one to control the animals around. I want to say, "Please take care of the animals around us, keep them healthy and happy, let them have a warm home!"

[对动物关爱英语作文

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篇13:拯救动物英语作文

全文共 665 字

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Dear classmates,

As we know, some animals are dying out for various reasons. There is no doubt that animals are our friends. With World Animal Day coming near, what should we do to protect animals?

First of all, we should forbid people’s killing animals at random. Second, we should do all we can to protect animals’ living environment. With their living environment destroyed, the animals will become extinct sooner or later. Third, we should try our best to make everyone realize the importance of protecting animals. In a way, protecting animals means protecting ourselves.

Dear classmates, let’s start now and make every effort to protect animals—our good friends!

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篇14:我最喜欢的动物英语作文Myfavoriteanimal

全文共 1007 字

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My favorite animal is a chicken.

As it happens, my home downstairs is no. 307 to raise a few chickens. Every day, we pass these chicks are partial his head to see us.

The chicken body furry and cute. A yellow feathers like wearing a yellow dress. The chicken has a pair of sharp mouth. Round eyes also pretty mentally?

I dont see their ears, but the chicken could not have no ears. If no ears, that we walk past, how they head, look at us with a partial?

Mother said that newly hatched chicks also can only eat a small grain of rice, cant eat corn or maize, and gave them drink water regularly. If there are bugs to eat them. Theyll grow more air.

How much I love these cute chicks. But mom and dad said cant keep now, dont keep good, they will die.

我最喜欢的小动物是小鸡。

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。

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。

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?

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。

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。

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篇15:动物英语作文:Pigeon鸽子

全文共 690 字

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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。

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篇16:去动物园的英语

全文共 386 字

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Today is Saturday. In the morning my father took me to the zoo.we went there by bus.There were many animals in the zoo.We saw monkeys ,elephants,dolphins,lions and so on.The monkeys were very clever.they could work out some maths problem.The elephants were very strong.I had a good time.

今天是星期六。在早上我父亲带我去动物园。我们乘公共汽车去那里。动物园里有许多动物。我们看到了猴子、大象、海豚、狮子等等。猴子是非常聪明的。他们可以解决一些数学问题。大象非常强壮。我有一个美好的时光。

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篇17:保护动物英语作文100字

全文共 1355 字

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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.

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篇18:精选写动物的英语作文

全文共 1605 字

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i have a pet dog, it”s name is bear. it is a lovely dog. it was born in 2015. it has a pair of big black eyes, and it is black all over. it has four long legs and a long tail. it often play with me, i love it very much.

【i have a cat 】 i have a cat .its name is mimi. its very lovey.my family all like it.

it always plays with me every day .it has black and white fur.as long as we saymimi,it right away runs to you.

its very good!so my family all like it!

【pig的作文】 mother gave me a lovely "pig" made of cloth on my tenth birthday. it was very lovely. the pig was dressed in blue. he had a red face and a little mouth. his two ears were just like two fans. he really looked funny. there was always a smile on his face. he must be a happy "pig" , i think.

【写海马的作文】 there are all kinds of horses in the world. but one of them you cant ride. it doesnt live on land, but in the sea. it looks like the head of horse. so the people call it sea horse. in fact, the sea horse is a small fish. it likes to live in warm water. a sea horse stands up in the water when it swims.

father horse carries the eggs to keep them safe in its pouch. when the eggs are hatched, the baby horses swim away.

【i have a litte dog】 i have a litte dog"xiao pang".because it is very tittt small.ityellow and brown.it olways run with me.it is so big.it like eat meat and rice. sometime i call it"xiao pang ", then it runs towe fast.

i have a litte dog"xiao pang".because it is very tittt small.ityellow and brown.it olways run with me.it is so big.it like eat meat and rice. sometime i call it"xiao pang ", then it runs towe fast.

i love my dog.

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篇19:写濒临危机动物的英语作文北极熊

全文共 3755 字

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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。

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篇20:英语作文写动物园

全文共 315 字

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Oh,today is warm!I am going to the zoo.

In the zoo,I can see many animals.The elephants are walking.

The monkeys are swinging.There are many rabbits in the zoo.

They are very cute!Oh,look at the birds,they are flying.

I am so happy!Haha!

噢,今天真暖和!我打算去动物园.

在动物园,我能看见许多动物.大象在走路.

猴子在荡秋千.在动物园里有许多兔子.

它们非常可爱!噢,看那些小鸟,它们在飞.

我真开心!哈哈!

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