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American black bears美国黑熊

来源:apple 编辑:apple 时间:2017-12-19
American black bears美国黑熊
American black bears美国黑熊
American black bears

  American black bears appear in a variety of colors despite their name. In the eastern part, most of these bears have shiny black fur, but in the west they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.
  Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.
  Like all bears, the black bear is timid and rarely dangerous, but if attacked, most can climb trees or cover ground at great speed. When angry or frightened, they are formidable enemies.
  Black bears feed on leaves, roots, fruit, insects, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels and many other woodland animals, bears do not actually sleep through the winter months. Although the bear does not eat during the winter months, sustaining itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.
  Most black bears live alone, except during the mating season. They prefer to live in caves. Baby black bears are born in January or February after a gestation period of six to nine months, and they stay with their mother until they are fully grown or about one and a half years old. Black bears can live as long as thirty years in the wild, and even longer in some nature reserves.

美国黑熊
  尽管有着美国黑熊的名字美国黑熊却以各种颜色出现。在东部,大部分的熊都有闪亮的黑色皮毛,但在西方,它们长着棕色,红色,甚至黄色的外套。在北方,黑熊的颜色实际上是灰色的或白色的。即使在同样的垃圾中,棕熊和黑毛熊也可能出生。
  黑熊是所有美国熊中最小的,从五到六英尺的长度,体重从三百五十磅。他们的眼睛和耳朵很小,他们的视力和听觉不如它们的嗅觉那样好。
  像所有的熊一样,黑熊胆小,很少危险,但如果受到攻击,大多数人都可以以极快的速度爬树或覆盖地面。当生气或害怕时,他们是可怕的敌人。  黑熊以树叶,根,水果,昆虫,鱼类甚至更大的动物为食。熊的最有趣的特性之一,包括黑熊,是他们的冬眠。与松鼠和许多其他的林地动物不同,熊实际上并不在冬天的几个月内睡觉。虽然熊在冬季不吃东西,但它本身从脂肪中维持,但它的体温几乎是正常的,它每分钟呼吸有规律的4或5次。
  除了交配季节,大多数黑熊都是独自生活的他们喜欢住在洞穴里。宝宝黑熊是在一到两个月的怀孕期间出生的,六到九个月的怀孕期间,他们和母亲一起生长,直到完全长大或约一年半。黑熊在野外能活长达30年,甚至在某些自然保护区能活得更长。

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