fenny80231
deforestation 砍伐森林contamination1. 污染,弄脏2. 玷污3. 致污物lemming 【动】旅鼠(北极产)porcupine【动】豪猪[C]haddock【鱼】黑线鳕
吃货的晚宴
鼬鼠(动物)有一种体形很小的黄鼠狼,它广泛分布于亚北极地区的丛林中,有时也穿越丛林的边缘进入北极苔原,但严格说来,它们算不上是北极居民。常年生活在北极草原上的最小的食肉动物是鼬鼠,或称之为貂,它们才是真正的北极居民。它们的实用价值高,因此有一段时间长遭猎人的捕杀,需要保护。主要分布于中国东北,西北和西南地区,以及欧洲,亚洲西部,东部和东南部等地。中文学名鼬鼠界动物界门脊索动物门纲哺乳纲目食肉目科鼬科基本信息【英文名】Weasel【释名】就是黄鼠狼,形状像鼠而身子长,头如小狗,尾大,黄色带红。气味特臊臭。偷吃鸡鸭,怕狗,被追逐时便撒屁几十个,满室恶臭不可闻。【性味】味甘、臭,性温,有小毒。介绍常年生活在北极草原上的最小的食肉动物是鼬鼠,或称之为貂。在北极生态系统中,或者说在食草动物和食肉动物的系列中,旅鼠和鼬鼠是相互对应的。鼬鼠的个体很小,连尾巴在内长度只有40厘米,雄性较大,体重也不过400克左右。腿短灵活,身小柔软,只要脑袋能钻过去,身体就会通行无阻。每年春天,在大批候鸟来到北极之前,旅鼠下的第一窝幼仔便为鼬鼠提供了必不可少的口粮,也为鼬鼠繁殖后代奠定了有力的基础。有一种体形很小的黄鼠狼,它广泛分布于亚北极地区的丛林中,有时也穿越丛林的边缘进入北极苔原,但严格说来,它们算不上是北极居民。常年生活在 北极草原上的最小的 食肉动物是鼬鼠,或称之为貂,它们才是真正的北极居民。另外,因为鼬鼠性格比较温顺,所以也得到了很多宠物爱好者的喜欢。习性夜行性,不冬眠。以 鼠,鸟, 蛙和昆虫等为食。每年春天,在大批候鸟来到北极之前,旅鼠下的第一窝幼仔便为鼬鼠提供了必不可少的口粮,也为鼬鼠繁殖后代奠定了有力的基础。内蒙古草原上有一种鼬鼠,它们整天忙忙碌碌,不停的寻找食物,把吃不完的储存到 洞穴里。一只鼬鼠一生要储存二十多个“ 粮仓”,足够十几只鼬鼠毕生享用。到老了走不动的时候它们就会躲进自己“粮仓”里。但它们必须经常啃咬硬物,磨短两颗门牙,否则就会因门牙无限生长而无法进食。但早先它们在“粮仓”里并没有储存硬物,结果一直生长的门牙没有硬物来磨,让鼬鼠无法进食,最后是饿死在自己的粮堆上。形态隶属于食肉目鼬科,体长14-21厘米,尾长3-7厘米,体重35-130克.夏季背部体毛为棕色,腹部为白色,冬季全身体毛为白色.仅尾尖为棕黑色.分布分布于中国东北,西北和 西南地区,以及欧洲,亚洲西部,东部和东南部等地.栖息与苔原,平原,山地森林,沼泽,草原和农田等地.夜行性,以鼠,鸟,蛙和昆虫等为食.全年均可发情.每年产1-3胎.妊娠期为35-37天.每胎产3-7仔.哺乳期约50天.4月达性成熟. 鼬鼠不冬眠。
龙宝宝lovyle
A story that was passed down from Ben Graham illustrates the lemming like behavior of the crowd: "Let me tell you the story of the oil prospector who met St. Peter at the Pearly Gates. When told his occupation, St. Peter said, "Oh, I'm really sorry. You seem to meet all the tests to get into heaven. But we've got a terrible problem. See that pen over there? That's where we keep the oil prospectors waiting to get into heaven. And it's filled—we haven't got room for even one more." The oil prospector thought for a minute and said, "Would you mind if I just said four words to those folks?" "I can't see any harm in that," said St. Pete. So the old-timer cupped his hands and yelled out, "Oil discovered in hell!" Immediately, the oil prospectors wrenched the lock off the door of the pen and out they flew, flapping their wings as hard as they could for the lower regions. "You know, that's a pretty good trick," St. Pete said. "Move in. The place is yours. You've got plenty of room." The old fellow scratched his head and said, "No. If you don't mind, I think I'll go along with the rest of 'em. There may be some truth to that rumor after all."