以下是摘抄网小编整理的濒临灭绝的动物英语作文19篇，希望对大家有所帮助。
第一篇：濒临灭绝的动物英语作文
my favourite animal is tortoise. tortoise walk not fast. but i like the tortoise. why? because, tortoise is a cute animal. it have a short tail and a four short foot. it have a little head and a hard shell. they are forty-five little and cute tortoise in my home. they like to play in the water. when they afraid some thing. they wall run fast. they like to eat the fish. i often buy some small fish to them to eat. they can catch the fish fast. first, they fake(假) sleep. when the fish swim near they mouth. they catch the fish fast and bit the fish head. so, the fish die. they can eat the fish. in winter. they like to sleep in the sand. when they sleep, they don’t eat any food.because they wall hibernation. but, when they are thirsty. they come out of the sand. so, we must give water to them to drink.
i love the tortoise. i hate the eagle. because, the eagle often eat
the tortoise with it sharp mouth.my favourite animal is tortoise.
第二篇：濒临灭绝的动物英语作文
Among all the animalsI like rabbit very much.
When I was a little girlkeep a rabbit by myselfit was very lovely with a pair of long earsand two red round eyesthe hair of it was white.After school I fed it everydayit liked vegetables and carrots.so when I gave them to itthe rabbit always jumpped happilylooked at me by its red eyesseemed to tell me it was very hungry.So I love the rabbit !
第三篇：濒临灭绝的动物英语作文
Earth's biological persity 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.
第四篇：濒临灭绝的动物英语作文
Do you know of any endangered animals? Why are they in danger?
I think there are many endangered animals in the world,such as tigers and pandas. When farmers cut down trees, tigers can no longer hide and hunt. Many tigers are killed by people who want to sell their fur for money. And there are few places where pandas can live.→zhaichao.com←
We are not alone in the world. We human beings could not live without all the plants and animals around us. So protecting wildlife is very important. We must take measures to keep plants from being destroyed and stop animals from being killed. If each of us can plant a tree and build a birdhouse, theworld will be more beautiful. It is very easy but useful.
第五篇：濒临灭绝的动物英语作文
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 station's 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。
第六篇：濒临灭绝的动物英语作文
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 they've 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。
That's 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 weight's 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 perged 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 didn't 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。
第七篇：濒临灭绝的动物英语作文
Panda'ｓbody is fat and soft, thick limbs, it's length about 1.5 meters, shoulder high 60-70 cm, weight up to 100-180 kg. Especially that pair of eight - shaped black eye circles, as if wearing a pair of sunglasses, very attractive.
The panda is one of the most precious animals in the world, mainly distributed in China's sichuan, gansu, shaanxi province, a few mountain areas, the number is very rare, belongs to the national protection animals, known as "national treasure".
The panda, whose ancestors were carnivores, is now a vegetarian, eating mainly arrow bamboo. An adult panda eats about 20 kilograms of fresh bamboo a day. Pandas are solitary, like to live alone, nocturnal, no fixed place to live, it will move with the change of the season. Every year in April and may is the breeding season of pandas, male and female pandas rarely live together. The female panda is pregnant 4 to 5 months or so, is anxious to find the tree hole or stone cave as a "delivery room", it each birth 1-2 red pandas. The panda family is very old. About a million years ago, they were found in shaanxi, shanxi and Beijing, and also in yunnan, sichuan, zhejiang, fujian and Taiwan. Now they remain in small Numbers and become precious "living fossils" for scientists to study biological evolution.
Pandas should be called "big pandas". Because, the panda is not like a cat's bear, but like a bear's cat, the panda is a cat.
The panda is not only selected as the emblem by the world wildlife association, but also often bears the task of "peace ambassador". With the friendship of the Chinese people, it travels across oceans and makes friends with relatives abroad. I love pandas!
第八篇：濒临灭绝的动物英语作文
The giant panda is a special product of our country. It is a lovely small animal and verypleasing. The giant panda can be described as a perfect vegetarian. Giant pandas like to eat bamboo shoots, but they also eat bamboo, roots and flowers. The cute face, plus a black and white sweater, looks very lovely. Pandas are the most popular animals for girls.
The giant panda is not active in high places, generally living on land, contrary to squirrels. The giant panda is solitary and likes to live alone and often has no fixed residence because of changing seasons. In the spring, it usually stays in the high mountain bamboo forest of more than 3000 meters. In the summer, we move to the shady slopes of bamboo shoots. Autumn moves to the slopes of xiangyang to prepare for the winter.
Giant pandas are fat and stout. The head is round, the ear is small, the kiss is short and the tail is short. The white face was black with a black kiss and eye ring, and a black strap stretched from the shoulders to the entire front, like a black and white coat.
The giant panda is about 1.5 meters long and weighs 160kg, and its black-and-white body hair is characteristic of pandas. Giant pandas eat more than 10 to 12 hours a day and eat 15 to 20 kilograms of food a day. People have cut off most of their bamboo forests for agricultural development, and there are now bamboo places that can only feed two to 36 giant pandas, and the giant panda is listed on the national list of protected animals.
There are fewer and fewer pandas now. I hope people will love it more and protect it.
第九篇：濒临灭绝的动物英语作文
The global polar bear population could decline by more than 30 percent in as little as 35 years. That's according to a new study in The Royal Society's Biology Letters.
全球北极熊数量在35年内可能下降超过百分之30。这是根据英国皇家学会生物学快报的一项新研究。
Researchers looked at climate change effect on the Arctic Sea and calculated the likelihood of this projected population drop is 71 percent.
研究人员观察气候变化对北极海的影响，并计算出预计种群下降的可能性为百分之71。
That's because polar bears stand on Arctic Sea ice when hunting for seals. According to NASA, even the thickest ice in the Arctic Ocean has "either thinned or melted away."
这是因为北极熊捕猎海豹时站在北极海的冰上。美国国家航空航天局表示，甚至北冰洋最厚的冰要么变薄或要么融化了。
And just this week, scientists reported sea ice levels in the area were at a record low for this time of year.
就在本周科学家报告称，该地区的海冰水平创下一年中这个时候的历史新低。
This all adds up to not great news for polar bears. With an estimated population of 26,000, the bears are already listed as a vulnerable species by the International Union for the Conservation of Nature.
这对北极熊不是什么好的消息。现估计有26,000头北极熊，已被国际自然保护联合会列为易危物种。
第十篇：濒临灭绝的动物英语作文
Golden monkeys live only in China. They are protected by Chinese government. Their fur is golden and a bit grey. Their tails are as long as their bodies. Male golden monkeys are big and strong while the female ones are much smaller. Golden monkeys live in forests which are 2000-3000 meters above sea level.
They like living in family groups. They eat fruit, nuts, tree leaves and so on. But now their number is getting smaller and smaller. Our government has built some nature reserves to protect them. We hope more and more people will understand the importance of protecting wild animals.
We also hope that people will stop hunting golden monkeys.
第十一篇：濒临灭绝的动物英语作文
there is only so much land on the earth, and so what we can do with it is limited. some people believe that human needs for farmland, housing and industry should come first, while others believe that some land should be set aside for endangered animals. i am of the opinion that we should reserve some land for the worlds animals for the following reasons.
first, mankinds need for land is constantly growing. if the demand is not checked in some way, humans will eventually develop all of the earths available land. at that time, mankind will have no more room to grow, and all the wild animals will have disappeared, as well as other valuable resources. second, humans are able to innovate and can use the land that they already possess in more efficient ways. animals are unable to do this. once their land is taken away from them they will die. third and last, endangered animals are an important part of the biopersity of our planet. if they disappear, we cannot predict what the effect will be. therefore, we should treat such animals as a valuable resource to be protected.
to sum up, the worlds endangered animals are an important resource and we should protect them by setting aside some land for them. although mankinds need for land continues to grow, people are intelligent and inventive enough to put the land they have to better use. in this way, we can have enough land for farming, housing and industry, and preserve the biopersity of the planet at the same time.
译文
地球上的土地就只有这么多，所以我们可以利用土地的方式有限。有些人认为人类对于耕地、居住以及工业的需求应该摆在第一位，但是有人则认为，有些土地应该留给濒临绝种的动物。我的看法是，基于下列的理由，我们应该保留一些土地给地球上的动物。
首先，人类对土地的需求在不断增加。如果这些需求不以某种方式来加以抑制，人类最后将会开发完地球上所有可用的土地。到那时候，人类将没有栽种作物的空间，而且全部的野生动物将会和其他宝贵的资源一样消失殆尽。其次，人类可以创新并且以更有效率的方式来使用已经拥有的土地，动物则无法做到这一点。一旦土地被剥夺，它们就会死亡。第三点，也是最后一点，濒临绝种的动物是我们地球上物种多元性的重要组成部分。如果它们消失了，我们无法预测将会造成什么样有影响。因此，我们应该把这些动物视为需要保护的珍贵资源。
总之，全世界濒临绝种的动物都是一项重要的资源，我们应该加以保护，并且保留一些土地给它们。虽然人类对于土地的.需求在持续增加，但人类很聪明，而且具有创造力，能够更充分利用所拥有的土地。如此一来，我们会有足够的土地耕种、居住，并用来发展工业，而且能同时保持地球物种的多元性。
第十二篇：濒临灭绝的动物英语作文
Golden monkeys are unique to China, the number is very small, throughout the country, can only find more than 600.
Golden snub-nosed monkey nose long very strange, color is actually blue, and the nose into the air, golden monkey quick, alert, good at climbing trees, like to eat tree leaves bud and wild fruit.
Golden monkey mothers love their babies the most. When in danger, they hold them tightly in their arms and wave their hands, begging their enemies not to frighten their little treasure. Then he pointed to his own chest, as if to show that he would die for the child.
Golden monkey and people, have the habit of taking a nap, golden monkey sleep appearance, very interesting, some with forefeet to hold the head, bending the body close to the trunk "huohu" sleep, and some on the trunk while laughing while closed eyes.
Golden monkeys like to live in groups, as few as thirty or fifty, as many as two or three hundred, living together, each group of golden monkeys has a Monkey King, Monkey King is strong, rich in experience.
Because the number of golden monkeys is too small, many people have not seen them, the staff of CCTV, in order to let the people of the country to see the golden monkeys, went to great lengths to catch some of their footage, we must protect the golden monkeys.
第十三篇：濒临灭绝的动物英语作文
The wild yak is the ancestor of the family yak, once widely distributed, and now only exists on the qinghai-tibet plateau. Wild yaks can weigh more than 1000 kg. Their bodies are dark brown with thick long hairs on their sides and legs. They are suitable for living in a cold environment. Bison live on the hillside all year round and like to eat the soft bundag grass. They bite with their teeth in summer and lick with their tongues in winter. The buffalo's prickly tongue is one of its weapons. Wild yaks usually roam the grasslands in herds of 20 to 30 and sometimes form herds of 200 to 300 to protect their calves. Some people have seen with their own eyes all the thirteen female buffalo head toward the outer circle, a group of calves in the protective ring, against the four wolves outside the ring. The wild yak generally does not take the initiative to attack people, its large physique, leisurely demeanor, showing a dignified, simple and honest appearance.
Wild yaks feed on the alpine grassland or in the desolate cold desert areas most of the time every day, and wander while eating. There is no very fixed habitat, only a general distribution area. In the cold winter, because the plants are covered with snow and ice, they often migrate short distances in a large range. Good at running, up to 40 kilometers per hour or more. Gramineae and sedge are the main parts of wild yak's food. Wild yak's tongue structure is so special that it can feed on cushion plants for a long time, so it becomes a species that is particularly tolerant to coarse food. The main natural enemies of wild yaks are wolves, which usually chase the old, young and frail wild yaks to the ice in a siege in winter, and tear them up after they slip.
Wild yaks still live in the northern Tibetan plateau tanggula foothills and along the tongtian river. The body of the wild yak weighs thousands of pounds and its strength is incomparable. It is simply a symbol of the vitality between heaven and earth. At the same time, the nomads in the plateau depend on yaks for their clothing, food, shelter and transportation, so they worship yaks as protective gods.
第十四篇：濒临灭绝的动物英语作文
长颈鹿
Animals are friends of human beings. Most of them are lovely. I like giraffe the most. They are very tall and have many brown spots. They have very long necks, so that they can eat the leavesin high trees. Giraffes are gentle and lovely. They are friendly to people. When I go to the zoo, I always look at them. They move slowly. I can’t keep it as a pet, because it’s so huge. It’s abig pity.
动物是人类的朋友，大部分的动物都很可爱。我最喜欢的是长颈鹿，它们很高而且又很多棕色斑点。它们的颈很长因此可以吃到大树上的叶子。长颈鹿温驯可爱，它们对人类很友善。当我去动物园的时候我总喜欢去看它们。它们动作缓慢。我不能把它当宠物因为它太大了，这有点遗憾。
狗
I like dogs, because they are man’s good friends. They can do many helpful things to us, such as guarding our houses, greeting guests, helping the police, and so on. Some trained dogs caneven lead the blind people and save people’s lives. So they‘re treated as our family members. I hope someday dogs will be in great harmony with human-beings.
我喜欢狗，因为它们是人类的好朋友。他们可以为我们做很多有用的事情，如，保护房子，问候客人，帮助警方等等。一些受过训练的狗甚至可以引导盲人、拯救人们的性命。所以他们都被当做是我们的家庭成员。我希望有一天狗能与人类和谐共处。
猴子
Do you know what kind of animal I like most? It’s monkey. Monkey is a kind of lovely animal. Many people like monkeys very much. Generally, monkey has small body covered with fur. Some kindsof monkeys have two big eyes and ears and a long tail. I can see them on TV or the zoo. Every time I go to the zoo, I will go to see them. Monkeys often stay in trees and jump between them.They are so lively and favorable. When they are happy, they will act for visitors. It’s very funny.
你知道我最喜欢的动物是什么吗?是猴子。这是一种非常可爱的动物，很多人都非常喜欢它们。一般来说，童子的身子比较小，身上长满了毛。其中的一些种类有两只大眼睛、大耳朵和一条长尾巴。我可以在电视上或动物园里看见它们。每次我去动物园，我都会去看猴子。它们常常待在树上，在树木之间跳来跳去，非常活泼，讨人喜欢。它们高兴的时候，还会特别表演给游客看，非常好玩。
第十五篇：濒临灭绝的动物英语作文
there is only so much land on the earth, and so what we can do with it is limited. some people believe that human needs for farmland, housing and industry should come first, while others believe that some land should be set aside for endangered animals. i am of the opinion that we should reserve some land for the worlds animals for the following reasons.
first, mankinds need for land is constantly growing. if the demand is not checked in some way, humans will eventually develop all of the earths available land. at that time, mankind will have no more room to grow, and all the wild animals will have disappeared, as well as other valuable resources. second, humans are able to innovate and can use the land that they already possess in more efficient ways. animals are unable to do this. once their land is taken away from them they will die. third and last, endangered animals are an important part of the biopersity of our planet. if they disappear, we cannot predict what the effect will be. therefore, we should treat such animals as a valuable resource to be protected.
to sum up, the worlds endangered animals are an important resource and we should protect them by setting aside some land for them. although mankinds need for land continues to grow, people are intelligent and inventive enough to put the land they have to better use. in this way, we can have enough land for farming, housing and industry, and preserve the biopersity of the planet at the same time.
第十六篇：濒临灭绝的动物英语作文
Snakes are cold-blooded animals. In winter they hibernatein holes which are narrow enough only to hold the snakes' bodies. The snakes can sleep through a whole winter without eating and moving. They can not feel any pain. The hibernation period lasts about five months. When spring comes, the snakes come out and begin their normal life.
Snakes can take many things as food, such as mice, sparrows, frogs,birds' eggs, pests and so on. People sometimes can see a snake eat a sparrow. First it moves close to the sparrow, then it puts out its tongue and brings the sparrow into its mouth and swallows it, which makes a lump in the snake's body. After some time the lump disappears.
As snakes are dreadful-looking, people are afraid of them. Many people drive them away whenever they see snakes. But in Chinese fairy tales, snakes are by no means bad. They seem to have human feelings. They can change into pretty girls. People like and respect them. The most well-known is the story about the White Snake and the Blue Snake.
In fact, snakes are not as dreadful as they look. They can help us to kill mice and pests. They can provide us with delicious meat. Their blood is a good drink. Poisonous snakes a
第十七篇：濒临灭绝的动物英语作文
One day, my mother bought two little rabbits for me.I’m very happy.From that on, the two little rabbits became my good friends. They have two little ears, red eyes, with white and fat boby. They’re marvellous.Everyday, they play with each other happily. One day, I couldn’t find them. I asked my mother: ”Where are they? ” My mother told me that she didn’t know. At last, I found them in the grass. They were very dirty. I was angry, but when I looked at their lovely faces, I was happy again.I love my little rabbits, and they love me. They are my good friends forever.
There are all kinds of animals in the world . My favorite animal is rabbits. It has two long ears, a pair of red eyes, and a short tail. It likes jumping. It likes eating carrots and cabbages. It is one of the world's most lovely animals.
My favourite animal is the panda,is our"national treasure",bacause pandas nive,lovable and lively,it was very likr it.panda is an ancient animal,is a zoologist called "living fossile " long ago there were many pandas in china,panda bamoo living area has large flowers,dead,threatening the survival of giant pandas.The whole world is extremely concerned about the rare giant panda rescue and transfer work.due to the destruction of the natural balance,climate warming,fewer and fewer panda.Panda is one of endangered animals,now only found in China,Sichuan,Shaanxi,Gansu,people began to conserve this endangered species.Today,the number of pandas has increased,but there is still a long way to go.Care for animals,is to protect human,we should be animals as man's best friend,to care,to protect them.Protection of animals is a duty of each person,let us work together to protect the giant pandas,giving them a good home.
第十八篇：濒临灭绝的动物英语作文
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, that's what's supposed to happen. As the planet warms, the warmer ice-free season is getting longer and longer. So what's 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.
"We've 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 we've 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 Manitoba's 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 that's going to help supplement against longer ice-free seasons, that really doesn't 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; they're 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 that's going to provide them with that type of fat are marine mammals. And they can only access those marine mammals when there's sea ice."
Adult males can go eight months without food. But younger, sub-adult bears, which are no longer nursing and must hunt, can't 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。
第十九篇：濒临灭绝的动物英语作文
With the growth of human population,the number of species has decreased rapidly in America,and some species have even vanished from our planet.
There are several possible reasons for this.Above all,as the human population grows rapidly,a growing number of people came to live where some wild species have been living.Then these species have to move to other places.Some of them probably can not adapt to the new environment and die.
随着人口的增长，物种的数量在美国迅速减少，一些物种甚至在地球上消失了。
这有几个原因。首先，随着人口迅速增长，越来越多的人来到住在一些野生物种的生活。那么这些物种迁移到其他地方。他们中的一些人可能不能适应新环境而死亡。