有趣的动物英语作文Interestinganimal实用20篇

狗是人类最忠诚的动物，有的狗能活14岁，它们的1岁相当于人的7岁，可见狗的生命是那么的短暂，我们要去爱护它。

我家有一只小狗，叫小豆豆，它非常惹人喜爱，因为腿有一些短，所以“战斗”时难免会有些不便。

有一天，小豆豆欢快地跑到了楼下，看见小狗毛球，它们玩了起来。小豆豆不小心咬了一下毛球的耳朵，这下坏了！我急忙叫它过来，可是没有用，还傻傻地站着，“快跑啊！”毛球飞一般的速度扑过去，“战斗”打响了。过了一会儿没有分出谁胜谁负，毛球和小豆豆都累了，我给小豆豆喝了点水，吃了点香肠，这样好让它“补充能量”。毛球看见了，也跑过来跟豆豆抢着吃。又一次开始了“战斗”，它们先是原地转了好几圈，毛球像喝醉了一样，一下坐到了小豆豆身上，像“骑大马”一样，小豆豆不认输，飞快地奔跑，可它还不下来，小豆豆生气了，摇头摆尾，看不清路，头一下子轧进了泥坑里，毛球一下就四脚朝天躺在地上认输了。小豆豆挣扎出来，像个黑衣人，满身黑土。小豆豆获胜，我举起它的前爪，小豆豆像跳舞一样转了一圈，然后“鞠了一躬”，仿佛在说：“谢谢大家。”

多么可爱的动物，多么天真善良有趣，我们一定要保护好它。

清晨，空气清新、阳光明媚、春暖花开。

我和爸妈兴高彩烈地一起到马戏团观看动物们的表演。

一开始，我以为动物们不会展示才艺，我和爸妈进了马戏团才知道动物们的才艺有多么精彩，那里的人群是多么壮观。

动物们开始表演了，我的心情一下子变得很激动。小猴在吹着好听的喇叭，好像在说：“看，看！我的表演精彩不精彩？”；还有可爱的小猪，骑着它心爱的自行车，表演杂技。小海豹用自己灵活的鼻子开心地玩着圆鼓鼓的小皮球。胖嘟嘟的大象用自已长长的鼻子把一根根小草吸进去，再放进嘴里吃。

人们纷纷鼓掌说：“马戏团的动物们真是逗人喜欢！”

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!

I have a dog.He is my favorite pet.He is very lovely.His name is Peter and he is two years old.His fur is long and white.He has big black eyes.His nose is very good.He can smell very well.He is quite small.He weighs about two kilograms.Peters favorite food is meat.He also likes bones.

Peter is very friendly.I feed him every day.He never barks or bites.Peter likes lots of exercise.It is necessary to walk the dog in the park every day if you want it to be healthy.So I play with him every day in the park.Peter likes to run in the park.He often chases cats and birds.It is very interesting.Peter can find the way back easily.I think he is the cleverest animal of all.

I like my dog and he loves me too.He is very healthy.All my family like him.We look after him very carefully.Ill make a small and lovely house for him.I think he will be happy to live there.Do you like my dog?

我有一只狗。他是我最喜欢的宠物。他很可爱的。他的名字叫彼得和他两岁。他的皮毛是漫长而白色。他有黑色的大眼睛。他的鼻子很好。他可以闻到很好。他是非常小的。他重约2公斤。彼得最喜欢的食物是肉。他也喜欢骨头。

彼得是非常友好的。我每天喂他。他从不吠叫或咬。彼得喜欢很多运动。有必要每天在公园里遛狗,如果你希望它是健康的。所以我和他每天都在公园里玩。彼得喜欢在公园里跑。他经常追逐猫和鸟。它非常有趣。彼得很容易找到回来的路。我认为他是所有动物中最聪明的。

我喜欢我的狗,他也爱我。他是非常健康的。所有我的家人喜欢他。我们非常仔细地照顾他。我将做一个小而可爱的房子。我想他很乐意住在那里。你喜欢我的狗吗?

Few Americans study stay put for a lifetime. They move from town to city or to suburb, from high school to college in a different state, from a job in one region to a better job elsewhere, from the home where they raise their children to the home where they plan to live after retirement. With each move they are forever making new friends, who become part of their new life at that time.

很少有美国人学习留一辈子。他们从城市搬到城市或郊区，从高中到大学在不同的国家，从一个地区到一个更好的工作在其他地方，从他们的家中，他们的孩子在家里，他们计划在退休后生活。随着每一个移动，他们永远在新的朋友，谁成为他们的新生活的一部分，在那个时候。

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.？

Today,there is an interesting thing at my home. Today is Sunday, so my father doesn’tgo to work. After lunch, my father goes to sleep and I feel a little bit bore. Suddenly,an interesting idea comes to my mind. I take four color pens to my father’sroom.

And then, I help him put on lipstick with a red pen, paint his face witha yellow pen, draw the left eyebrow with a blue pen and draw the right with agreen pen. Finally, I draw a very interesting makeup for dad. And then I goback to watch TV. About half an hour later, he shouts loudly when he is doingwith his hair.

I laugh loudly, because he is shocked by himself and he isn’tangry with me.

I like small animals, like the small animals to count my little black dog.

My little black dog she is cute! In black, shiny hairs, eyes with two white spots, like two white beads. On the head and on his thighs hair is very long, like a horse head to the ground. Straight ear, as if time in listening to what passed around. Thick and long broom tail swing, from time to time as a cleaner for free! More funny is that it always speaks with a wet nose toward me, like a sick child, seems to be very poor, in fact, I know it really want to play with me. In the invitation to me!

The little black dog temperament is very docile, very human nature. I get along with it for a long time, in love, it seems very understand me. Whenever I am angry, it squatted beside me quietly motionless and seems to want to accompany me through the sad time. I am happy, it will run up to and around me, "an auf" cried, very agreeable.

The puppy experience dangerous also have several times. Is the first time fell into the river, fortunately, was found to pull up, feed it to take medicine, good soon. And on several occasions by poison poison dog several times, but also by early treatment, will have to escape. From then on, it can sniff out those toxic food, what food non-toxic. Later, our dog never in poison. It very sharp!

I love my dog. I hope it will stay with me, to accompany me joyful growth!

我喜欢的小动物，最喜欢的小动物要数我家的那条小黑狗了。

我家的小黑狗可逗人喜欢啦!一身黑亮亮的绒毛，眼睛上面有两个白点，颇像两颗白色珠子。头上和大腿上的毛很长，像马鬓一样拖到地面。直楞楞的耳朵，好象时刻在倾听着周围有什么动静。又粗又长的扫帚尾巴不时摇摆着，像一个免费清洁工呢!更逗人的是它总翘着潮湿的鼻子向着我，像一个生病的孩子，看起来似乎很可怜，其实，我知道它很想和我玩。在向我发出邀请呢!

小黑狗的性情很温顺，很通人性。我和它相处久了，产生了感情，它好像很理解我。每当我生气的时候，它就静静地蹲在我身边一动也不动，似乎想陪我度过那难过的时间;我高兴的时候，它就会围着我跑来跑去，“汪汪汪”地叫着，很讨人喜欢。

小狗的经历危险也有几次。第一次是掉进了河里，幸好被人发现拉了上来，喂给它吃药，不久就好了。还有几次是被毒狗的人毒了几次，幸好也被及早治疗，才得脱险了。从那以后，它就能嗅出那些食物有毒，哪些食物无毒。后来，我家的狗再也没中过毒。它够机灵吧!

我喜欢我家的小狗。我希望它永远伴随我左右，陪我快乐成长!

A tiger is a kind of catamount animal.It looks like a cat,but much bigger than a cat.A tiger is very ferocious and it eats mainly meat.It has yellow and black streaks all over its body and it looks very beautiful.Its tail is long and strong and it can hit its quarry dying.

Tigers live in the thick forests and small animals in the forests are tigers food.

During the past years,many forests have been cut down and the living conditions of the tigers are becoming worse and worse.There are fewer tigers left in the world now.Tigers are the animals of the world,and they should have their own living spaces.We must do our best to protect the tigers and their living environment.

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.

My favorite little animal - the turtle, I gave it a name called "Li Shijan", usually I call it "extension". It is not just a lovely shape and it can sometimes understand my words! Its head small, neck thin, but also carrying a bowl like the size of the shell, green, pointed little tail It is very interesting to start the road.

Although it is only a small animal, but it also has a good heart. Once a grandfather was hospitalized, it was hunger! Even if we had bought it the most favorite loach fish, it would not have eaten it. Until the grandfather half a month after discharge, it was happy to eat, when the devil is really like people love and pity.

But sometimes it is also "hateful"! One day, it is in the glass cylinder hold the uncomfortable to come out, I see it anxious look like to help it, I use the index finger and thumb carefully pinch its shell, light I did not want to come out, did not think that it was with a sharp claws to scratch me, really do not know good people! Although I am very angry, but to see it happy on the ground free to play everywhere, I am also happy for it The

This is my favorite little animal - the turtle "extension". Do you like it?

Panda is one of the scarcest animals.People in the world like it very much.There used to be many pandas in China long ago.As the balance of nature was destroyed and the weather was getting warmer and warmer,pandas became less.But at present,the number of pandas is increasing year by year.There are now so many pandas that some are being sent to other countries so that people there can enjoy them.

Nowadays,the biggest nature park for panda in China is in Sichuan.There is a research centre for nature and wild life there.Scientists hope that one day they will have enough pandas to be set free and let them live in the wild again.

熊猫是最稀缺的动物之一。人非常喜欢。曾经有许多大熊猫在中国很久以前。作为自然的平衡被毁,天气越来越暖和了,熊猫变得更少。但目前,熊猫的数量逐年增加。现在有很多熊猫,一些被发送到其他国家,这样人们可以享受他们。

如今,最大的自然公园熊猫在中国是在四川。有一个研究中心的自然和野生动物。科学家们希望有一天他们会有足够多的熊猫时,被释放,让他们重新生活在野外。

The monkey also called marmosets, and its name, the aye-aye only roughly the size of a finger. Refers to the monkey around 10-12 cm tall, weighs about 80-80 grams. The largest but also 35 centimeters. Its tail is long and fluffy, generally up to 20-35 cm, like a small broom.

Monkeys like to live in the rainforest, hiding in the nest to sleep during the day and night activities alone or in pairs. So how the aye-aye foraging? At night, with the frequent "alas alas," cries, secretive refers to the monkey out, hunting tree of worm is refers to the monkey handy trick, start, walking along the trunk, gently tip close to the bark, when they hear or smell anything, then stop and sparkling view, which in turn was violently dig bite bark, with his unique fingers dig eggs in the trunk, until to dig out the hidden grubs, and then, out of his fingers, fill in the entry grubs squashed. The aye-aye mainly in a variety of fruits, nuts and insects. Due to monkey likes to eat eggs on the bark or dead, larvae, and small beetles, its eating habits, much like the trees doctors - woodpecker, so have the effect of the woodpecker. So close to the island of Madagascar on the African continent have a woodpecker, here was replaced by a monkey.

Mother marmoset pregnancy for 140 ~ 150 days, every child 1 ~ 3. Marmosets family, male marmosets plays the role of "good husband good father". Female marmosets, after giving birth to children only embrace when feeding them for a while and take care of children work all fell upon the male marmosets. Males marmosets as little marmoset clean themselves, by the time the little marmoset no longer eat milk, it will be personally feeding the kids eat

Now marmoset habitat reduction, degradation and human hunting is the main factor to the dangerous animals. Because the monkey evolution so far still with original appearance and characteristics of life, so is very scarce. Marmosets throughout the monkeys in the family, only a dozen in all over the world. Many Malagasy believe that monkeys will bring them bad luck. If you see a refers to the monkey, they will kill it at once. On the other hand, refers to the monkeys live in the rainforest has been cut down, so they also face the danger of extinction. Let us act together, to protect endangered animals.

指猴又叫绒猴，和它的名字一样，指猴只有人的一根手指差不多大小。指猴的身高10—12厘米左右，重约80—100克。最大的也不过35厘米左右。它尾巴又长又蓬松，一般可达20—35厘米，就像一把小扫帚。

指猴喜欢栖息在雨林中，白天藏身于巢窝中睡觉，夜间单独或成对出来活动。那么指猴又是如何觅食的呢?入夜了，随着一声声“唉唉”的叫声，诡秘的指猴出动了，猎取树缝中的小虫是指猴得心应手的把戏，开始，轻轻沿着树干行走，鼻尖紧贴树皮，当听到或嗅到什么，便停下来凝神观看，继而便猛烈地掘咬树皮，用它特有的手指抠树干中的虫卵，直到挖出隐藏着的蛴螬，然后，伸出指头，把蛴螬压扁填入口中。指猴主要以各种水果、坚果和昆虫为食。由于指猴最喜欢吃树皮下或枯树上虫卵，幼虫，小甲虫，它的进食习性，颇像树木医生--啄木鸟，因此起到了啄木鸟的作用。所以在离马达加斯加岛很近的非洲大陆有啄木鸟，这里则被指猴所代替了。

母绒猴孕期为140～150天左右，每胎1～3仔。狨猴家族里，雄狨猴充当着“贤夫良父”的角色。雌狨猴生下子女后，只在喂奶时抱上它们一小会儿，照料孩子的工作全落在雄狨猴身上。雄狨猴会为小狨猴清洗身体，等到小狨猴不再吃奶时，它还会亲自喂小家伙们进食

现在绒猴栖息环境的缩小、恶化和人为的捕猎是使这种动物致危的主要因素。由于此种猴类进化至此仍然带有原始的面貌及生活特征，所以极为稀缺。狨猴在整个猴类家族中，在全世界范围中仅仅只有十几种。许多马达加斯加人认为指猴会给他们带来恶运。如果看到一只指猴，他们会立刻把它杀死。另外，指猴赖以生存的雨林遭到了砍伐，所以它们也面临着灭绝的危险。让我们一起行动起来,保护濒危动物!

Contribute to nature reserves and other wilderness areas.Habitat preservation is one of the best ways to help protect animals.You can donate money or volunteer your time helping the nature reserve preserve habitat.

Buy environmentally friendly goods.Choose non-toxic cleaners and lawn care items that wont pollute streams,rivers or oceans.Avoid any products that have been made from threatened or animals.Buy foods and goods that are made from materials that do not harm animals or their habitat.For example,look for organic chocolate,coffee or cotton clothing that is grown without cutting down rainforests or destroying habitat.

Create or restore habitat for animals.You can volunteer to help with projects worldwide designed to reestablish habitat.In your own backyard,plant a butterfly garden,use native plants and trees and let "wild" areas grow to provide habitat and food.

Join a local,national or global conservation organization.Some organizations focus on one particular animal while others focus on broad efforts for all species.You can "adopt" an animal through these organizations,which makes a great gift idea as well.

促进自然保护区和其他荒野地区。栖息地保护的最好方法之一是帮助保护动物。你可以捐款或志愿时间帮助自然保护区保护栖息地。

购买环保商品。选择无毒清洁剂和草坪护理项目,不会污染河流,河流或海洋。避免任何威胁或动物制成的产品。购买食品和产品,是由材料,不伤害动物或它们的栖息地。例如,寻找有机巧克力、咖啡或棉衣服,没有砍伐热带雨林生长或破坏栖息地。

创建或恢复栖息地的动物。你可以志愿帮助全球项目旨在重建的栖息地。在自己的后院,工厂一只蝴蝶花园,使用原生植物和树木,让“野生”地区生长提供栖息地和食物。

加入一个地方、国家或国际保护组织。一些组织专注于一个特定的动物而其他人关注广泛的努力为所有物种。你可以通过这些组织“采用”动物,使一个伟大的礼物的想法。

导语：很多东西都面临灭绝的危险，我们应该保护动物，下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

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.

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.

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

【参考译文】

许多野生动物正面临灭绝的危险，因为它们生活的环境已经发生了巨大的变化。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食物危机。同时，人类为了获取皮毛、皮肤、角、牙和肉而捕杀物种。

为了保护我们的生态资源，人们应该意识到任何物种的损失至少是知识的源泉和自然美的源泉。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。

只有人类采取一些激烈的措施，野生动物才能被保存下来。

In the past, there have been many endangered animals. Now they are extinct. Does it matterHas our environment been affected by their absenceHas the quality of our own life been changedThe answer to these questions is “Yes.”

It does matter if we destroy an endangered species habitat to develop more farmland, housing or industrial parks.It will effect all the other creature.

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

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

Human beings should be responsible for their own acts of nature. The promulgation of laws to maintain ecological balance, to make more space and natural. Conservation biology, Protect environment, protection of natural.

There are many traditional cultures. I like Spring Festival best.

Legend has it that there was once a monster named nian who often went to the village to harm people, eat cattle and sheep. So, people want to get rid of it. However, no matter what people do, they cant get rid of the year. In the end, a child accidentally lit the bamboo and made a crackling noise, and nian was scared away. People are happy. Later, people set off firecrackers on this day in order to commemorate the happy day. Later, it gradually became the "Spring Festival" festival.

I go back to my hometown every year. Every year, its very busy. On the eve of the New Year, it is also called New Years eve. Every family is affixed with spring couplet, affixed "fu" word. Some people are so clever that they cut their own window flowers to the window, like falling snow. Others hang lanterns on the front door, and the lanterns are very beautiful.

That night, the sound of fireworks, like thunder, one after another, one after another. Li hua red the whole sky, like a beautiful flower. After setting off firecrackers, people picked up the delicious and big dumplings and ate the reunion dinner. The children are also reunited with their parents. People ate hot dumplings and watched the wonderful Spring Festival gala, which lasted until twelve o clock in the evening, and the New Years bell rang.

The next morning, people get up very early, whether adults or children are breathing new clothes and going door to door. Everyone has a smile on their faces and good luck in their mouths.

The happy atmosphere lasted until the 15th day of the first lunar month.

When I was very small, I lived in my hometown. My grandparents raised two

dogs, and I liked them very much. I watched them grow up from the little animals

to the big dogs. Every time when I leaved home for school, they would follow me

for some distance. When I walked a little far away, they would turn home. When I

went home after school, they would wait for me in the door and swayed their

tails. I knew they were welcoming me home. They were like my family members and

I learned that animals are part of our nature. We should protect them. We can

create a harmonious society.

在这个大千世界里，有许多奇特的动物。今天我要向大家介绍的动物生活是海洋里的，它们也是马，但不能被人们骑，它们的名字叫海马。 海马的名字源于它酷似马的头部。有趣的是，它们同传说中的中国龙十分相像，不过它确实属于鱼类。它的背鳍长在身体下部，胸鳍位于鳃旁边的头部，同鲑鱼、金枪鱼一样，属于鱼类中硬骨鱼一族。

海马生活在从澳大利亚到加勒比海的沿海地区，尤其喜欢待在海草铺成的绿床和珊瑚礁中，因为它们能使海马轻松藏匿在植被之中不被捕食者发觉。海马没有牙齿，也没有胃，但它却是一种贪婪的食肉动物。它们会先将猎物吸入口中，然后整个送入到效率低下的消化系统中。海马在搜寻猎物时，两只眼睛可以独立活动，互不干扰。

海马因鳍不发达，它们的游泳姿势也蛮有趣的，没有四肢，只能靠尾巴一弓一弓的动力使身体前移。海马的繁殖方式也非常的有趣，当雌性海马产好卵，它就会把卵放在雄性海马的育儿袋里，直到小海马诞生，海马爸爸的任务也就结束了。 天下之大，无奇不有。海马真是一种奇特又有趣的动物。

Since I went to college, I have made many friends and we shared the same

interest. My friends and I liked traveling so much. We decided to travel abroad.

The destination was Thailand. We spent ten days there and had a nice trip. It

was such an unforgettable trip, and I learned a lot.

Firstly, it was my first time to travel abroad. My friends and I had made

many preparations. We read the travel guide and chose the information that was

useful to us. I classified the information and wrote down tourist sites. During

the trip, I become much independent. Sometimes I even walked down the foreign

street by myself, appreciating the beautiful scenery.

Secondly, I broadened my vision and enrich my mind. Before I came to

Thailand, I needed to read some information, then I got to know this countrys

culture and their tradition. When I was in Thailand, I could feel its religious

belief. Whats more, there were so many foreigners here, and I talked to them

happily.

Traveling is a good way to learn knowledge, and I know the importance of

English. It is the key to know about the world.

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。