网上找出来又翻译的，不知道是不是。（动物是如何过冬的）
The weather gets colder, days get shorter and leaves turn color and fall off
the trees. Soon, winter is here. Snow covers the ground. People live in warm
houses and wear heavy coats outside. Our food comes from the grocery store. But
what happens to the animals?
天气越来越冷，白天变短了，叶子变了颜色，从树上落下来。很快，这里是冬天。雪覆盖了地面。人们生活在温暖的房子里，穿厚衣服外面。我们的食物来自杂货店。但发生了什么动物？
MIGRATE
迁移
Animals do many different, amazing things to get through the winter. Some of
them "migrate." This means they travel to other places where the weather is
warmer or they can find food.
动物不同，度过冬天的令人惊奇的事情。他们中的一些人“迁移”。这意味着他们前往其他地方的天气是温暖的或他们能找到的食物。
Many birds migrate in the fall. Because the trip can be dangerous, some travel in large flocks. For example, geese fly in noisy, "V"-shaped groups. Other kinds of birds fly alone.
许多鸟儿秋天迁徙。因为这次旅行是很危险的，大群一些旅行。例如，鹅飞在嘈杂的，“V”形组。其他种类的鸟独自飞翔。
How do they know when it is time to leave for the winter? Scientists are
still studying this. Many see migration as part of a yearly cycle of changes a
bird goes through. The cycle is controlled by changes in the amount of daylight
and the weather.
他们怎么知道什么时候该离开过冬？科学家还在研究这个。许多人认为移民的年周期变化部分通过鸟。周期是由日光量的变化和天气控制。
Birds can fly very long distances. For example, the Arctic tern nests close
to the North Pole in the summer. In autumn, it flys south all the way to
Antarctica. Each spring it returns north again.
鸟能飞很长的距离。例如，北极燕鸥的巢在靠近北极的夏天。在秋天，它飞到南极南一路。每年春天返回北方又。
Most birds migrate shorter distances. But how do they find their way to the
same place each year? Birds seem to navigate like sailors once did, using the
sun, moon and stars for direction. They also seem to have a compass in their
brain for using the Earth's magnetic field.
大多数鸟类迁徙距离较短。但是他们怎么找到自己的方式，在每年的同一地方？鸟儿似乎在像水手一样，用太阳，月亮和星星的方向。他们似乎也有一个罗盘在他们的大脑利用地球磁场。
Other animals migrate, too. There are a few mammals, like some bats, caribou
and elk, and whales that travel in search of food each winter. Many fish
migrate. They may swim south, or move into deeper, warmer water.
其他动物的迁移，也。有一些动物，像蝙蝠，驯鹿、麋鹿，鲸鱼在每一个冬天的食物搜索旅游。许多鱼类回游。他们可能游南，或进入更深的，温暖的水。
Insects also migrate. Some butterflies and moths fly very long distances. For
example, Monarch butterflies spend the summer in Canada and the Northern U.S.
They migrate as far south as Mexico for the winter. Most migrating insects go
much shorter distances. Many, like termites and Japanese beetles, move downward
into the soil. Earthworms also move down, some as far as six feet below the
surface.
昆虫的迁移。一些蝴蝶和飞蛾飞很长的距离。例如，黑脉金斑蝶在夏天在加拿大和美国北部迁徙，南到墨西哥过冬。大多数昆虫迁走很短的距离。很多，如白蚁和日本甲虫，向下移动到土壤。蚯蚓也向下移动，有的远达六英尺以下的表面。
ADAPT
适应
Some animals remain and stay active in the winter. They must adapt to the
changing weather. Many make changes in their behavior or bodies. To keep warm,
animals may grow new, thicker fur in the fall. On weasels and snowshoe rabbits,
the new fur is white to help them hide in the snow.
有些动物仍在冬天保持活跃。他们必须适应天气的变化。许多改变他们的行为或身体。保持温暖，动物可以长出新的，更厚的皮毛在秋天。对黄鼠狼和雪鞋兔，新的毛是白色的帮助他们藏在雪中。
Food is hard to find in the winter. Some animals, like squirrels, mice and
beavers, gather extra food in the fall and store it to eat later. Some, like
rabbits and deer, spend winter looking for moss, twigs, bark and leaves to eat.
Other animals eat different kinds of food as the seasons change. The red fox
eats fruit and insects in the spring, summer and fall. In the winter, it can not
find these things, so instead it eats small rodents.
食物是在冬季难。有些动物，如松鼠，老鼠和海狸，收集额外的食物在秋季储存以后吃。一些，像兔子和鹿，度过冬天寻找苔藓，树枝，树皮和树叶吃。其他动物吃不同种类的食物随着季节的变化。红狐狸吃水果和昆虫在春天，夏天和秋天。在冬天，它找不到这些东西，所以反而吃小型啮齿动物。
Animals may find winter shelter in holes in trees or logs, under rocks or
leaves, or underground. Some mice even build tunnels through the snow. To try to
stay warm, animals like squirrels and mice may huddle close together.
动物会在树孔或日志找到冬棚，岩石或树叶下，或地下。有些老鼠甚至建立隧道穿越雪。为了保持温暖，像松鼠和老鼠的动物可以紧靠在一起。
Certain spiders and insects may stay active if they live in frost-free areas
and can find food to eat. There are a few insects, like the winter stone fly,
crane fly, and snow fleas, that are normally active in winter. Also, some fish
stay active in cold water during the winter.
某些蜘蛛和昆虫可能如果他们生活在无霜的地区，可以找到吃的食物保持活跃。有一些昆虫，像冬天的石蝇，鹤飞，和雪蚤，冬季通常是积极的。同时，一些鱼保持活跃在冷水在冬季。
HIBERNATE
冬眠
Some animals "hibernate" for part or all of the winter. This is a special,
very deep sleep. The animal's body temperature drops, and its heartbeat and
breathing slow down. It uses very little energy. In the fall, these animals get
ready for winter by eating extra food and storing it as body fat. They use this
fat for energy while hibernating. Some also store food like nuts or acorns to
eat later in the winter. Bears, skunks, chipmunks, and some bats hibernate.
有些动物“过冬”的部分或所有的冬天。这是一个特殊的，非常深的睡眠。动物的体温下降，心跳和呼吸减慢。它使用很少的能量。在秋天，这些准备过冬吃多余的食物储存为脂肪。他们用这种脂肪作为能量而冬眠。也有一些商店食物如坚果或橡子冬天吃晚。熊，臭鼬，花栗鼠，和一些蝙蝠冬眠。
AND MORE
和更多的
Cold-blooded animals like fish, frogs, snakes and turtles have no way to keep
warm during the winter. Snakes and many other reptiles find shelter in holes or
burrows, and spend the winter inactive, or dormant. This is similar to
hibernation.
冷血的动物如鱼，青蛙，蛇和龟都没有办法在冬天保持温暖。蛇和其他爬虫发现洞穴中避难，并在冬天不活跃，或休眠。这是类似于冬眠。
Water makes a good shelter for many animals. When the weather gets cold, they
move to the bottom of lakes and ponds. There, frogs, turtles and many fish hide
under rocks, logs or fallen leaves. They may even bury themselves in the mud.
They become dormant. Cold water holds more oxygen than warm water, and the frogs
and turtles can breath by absorbing it through their skin.
水使许多动物一个良好的避难所。当天气变冷，他们转移到湖泊和池塘的底部。在那里，青蛙，海龟和许多鱼躲在岩石或落叶，日志。他们甚至将自己埋在泥里。他们成为休眠。冷水比温水拥有更多的氧气，和青蛙和海龟可以通过吸收它通过皮肤呼吸。
Insects look for winter shelter in holes in the ground, under the bark of
trees, deep inside rotting logs or in any small crack they can find. One of the
most interesting places is in a gall. A gall is a swelling on a plant. It is
caused by certain insects, fungi or bacteria. They make a chemical that affects
the plant's growth in a small area, forming a lump. The gall becomes its maker's
home and food source.
昆虫寻找冬天躲在地洞，树皮下，深埋在腐烂的木头或任何他们能找到的小裂纹。一个最有趣的地方是在胆。虫瘿是植物肿胀。它是由一定的昆虫，真菌或细菌引起的。他们使化学在一个小地区，影响着植物的生长，形成肿块。胆囊是制作者的家和食物来源。
Every type of insect has its own life cycle, which is the way it grows and
changes. Different insects spend the winter in different stages of their lives.
Many insects spend the winter dormant, or in "diapause." Diapause is like
hibernation. It is a time when growth and development stop. The insect's
heartbeat, breathing and temperature drop. Some insects spend the winter as
worm-like larvae. Others spend the winter as pupae. (This is a time when insects
change from one form to another.) Other insects die after laying eggs in the
fall. The eggs hatch into new insects in the spring and everything begins all
over again.
昆虫类型都有它自己的生命周期，这是它的成长和变化的方式。不同的昆虫在冬天在生活的不同阶段。许多昆虫在冬天休眠，或“滞育滞育就像冬眠。”。这是一段时间，生长发育停止。昆虫的心跳，呼吸，体温下降。有些昆虫在冬天为蠕虫状幼虫。别人过冬蛹。（这是当时的昆虫从一种形式转变到另一个。）其他昆虫死在秋天产卵后。卵孵化成新的昆虫在春天万物开始一遍。
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