英语七句话的作文动物迁移
Animal migration refers to the animal due to the breeding, feeding, climate change, migration and other reasons certain distance. Periodic and aperiodic migration migration.Part of migratory birds due to seasonal breeding and breeding grounds yearly return spring and autumn winter moved south to do some horizontal cyclical migration route, each bird migration route unchanged general often migrate along the food-rich areas near water; in North America, for example, there are four main migratory bird migratory paths: (1) the Pacific migration route, the American continent in the West Bank along the Pacific route. (2) Mississippi route along the Mississippi migration. (3) central migration route, along the Rocky Mountains and the line. (4) Atlantic flight route, along the American east coast of the continent bordering the Atlantic Ocean. The terms of East Asia, for example, occurs mainly in the winter migratory birds in autumn and winter, the main path includes: overland route from Siberia, northeastern mainland China, Japan, Korea and other places and then moved to the south coast of the mainland by Taiwan, Indochina or more Borneo in the South, or even Australia and New Zealand region, such as the Shrike. If you pass through the Aleutian sea line Shen Islands, the islands of Japan, Okinawa, Taiwan, the Philippines and then south to the Flying Islands, Borneo, even as far as Australia, button region; the spring, migratory birds will return to northern breeding grounds, so cycle once a year. East Asia summer migratory birds choose the opposite of winter season each year by the South Peninsula of Guangdong, Fujian coast north to Taiwan and other areas of summer, such as azaleas. Other migratory routes as well as East Africa - West routes. Identify the direction of the main bird migration changes according to celestial, rely on the Earth's magnetic field, or along the geographic line memories and the like.Fish due to seasonal breeding and foraging and other factors make certain direction cyclical migration can be divided into:① reproductive migration, such as deep sea eels fresh water to spawn in the reproductive stage tour, far land called migration.② juvenile migratory fish live in the ocean, reproductive swim to freshwater spawning, hatching juveniles following spring with the melting of snow and ice into the ocean swim.③ foraging migratory fish to migrate into the cluster foraging and plankton prey rich waters.④ season migratory fish due to sea temperature changes with the seasons and the migration to a suitable temperature waters.Mammals due to seasonal breeding and feeding and other reasons make periodic migrations, such as caribou winter south to northern coniferous forest, spring returns foods rich northern tundra. In addition to the horizontal direction but also have a migration migrate vertically. Such as mountain cold season, foraging animals often move to the lower. Many deep-sea fish and invertebrates of the year in the deep and shallow water, respectively, to spend part of the time.修改建议
描写动物的季节性迁移请各位提供一下答案，好的有加分
动物群从一个区域或栖息地到另一个区域或栖息地的移动行为，尤其是指鸟类和鱼类在一年的特定季节离开一个区域，后来又回到这个区域的周期性移动。
迁移可以使动物利用多种栖息地内的资源，例如北极夏季日照长，食物丰富，很多涉禽和其他鸟类都到这里来繁殖，但一到冬季，它们就必须向南方作长距离的迁移。
如果环境资源变化莫测，动物常常以无规律的迁移来适应这种状况。
奎利亚雀和蝗虫每年迁飞的情况变化很大，比燕子的迁飞要无规律得多。
但这种迁移能使它们更好地利用那些变化无常和暂时性的食物资源。
哺乳动物的迁移 大型有蹄动物可以迁移很远的距离，驯鹿在最北部地区度过夏季，以低矮树木的树叶和阔叶草本植物为食，夏季过后它们便迁往南部过冬，主要吃草类和地衣。
它的迁移距离可以长达500公里。
角马的迁移范围南北方向约200多公里，东西方向约170多公里。
驼鹿和麋鹿常进行垂直迁移，夏季向高海拔地区移动，冬季进入邻近的低地过冬。
鲸鱼、海狮、海豹和蝙蝠等以及一些大型食肉兽（狮子和狼等），常跟随猎物进行迁移。
鸟类的迁移 地球上迁移鸟类约占全部鸟类种数的1\\\/3，即将近3000种之多，每年进行迁移的鸟类决不会少于100亿只。
生活在北半球的鸟类大多数是迁移鸟类。
北极燕鸥每年秋天从距北极7°线的营巢区，沿着欧洲和非洲大陆的西岸飞向南极地区越冬，第二年春天又飞回营巢区，往返距离达4万公里，相当于沿赤道绕地球一圈。
在澳大利亚越冬的鹬形目候鸟，常飞过南太平洋，先到我国的广东省和福建省，再沿浙江省和江苏省海岸北上至西伯利亚的鞑靼海峡；另一条路线是从澳大利亚经菲律宾到我国河北省，再沿海岸飞往黑龙江，最后到达西伯利亚。
有些鸟类沿东西方向迁移，例如在加拿大中部进行繁殖的白翅海番鸭，几乎是沿着正东和正西方向迁往大西洋海岸和太平洋海岸。
爬行动物的迁移 最著名的是各种海龟，它们迁移1000～1500公里是很普通的现象。
橄榄棱皮龟横渡大西洋的迁移全程达5900公里。
海龟的迁移一般与2～4年的繁殖周期有关，它们需要到特定的海滩去产卵，还要到一个特定的靠近大陆的取食区度过一个相当长的时期。
有人用大陆漂移学说来解释海龟的迁移路线，认为随着大陆的漂移，海龟往返两地的距离越来越远，最后终于形成了现在这样漫长的迁移路线。
鱼类的迁移（回游） 包括海洋鱼类的溯河性迁移；淡水鱼类向海洋的繁殖迁移；鱼类在淡水中的迁移和鱼类在海洋中的迁移等4种类型。
鲑科鱼类的溯河性迁移是最著名的，它们都在溪流或湖泊中产卵，幼鱼孵化后便迁移到海洋中去（有的要在淡水中生活一个时期），而成年鱼则主要是在海洋中生活，到生殖时便又回到它们出生的江湖中去产卵。
溯河性鱼类除鲑科外，还有鲱科、七鳃鳗科和刺鱼科。
昆虫的迁移 普累克西普斑蝶（Danaus plexippus）每年秋季从加拿大飞往墨西哥越冬，全程3000多公里，而在第二年春天又向北迁飞。
飞蝗也是著名的迁飞昆虫。
候鸟的迁移方式名为迁徙,迁移原因是为了到南方过冬;一些鱼类也会迁移,迁移方式名为回游,是为了繁殖后代. 有的会飞,有的会游.
动物的迁移方式
燕子，春天回南方，秋天往南迁；大雁同上；牦牛也随季节迁徙；企鹅等。
