| The labyrinth of papyrus provides food and shelter for enormous numbers of fish. These waters are clearly fertile, but did they nourish the faraway fields of Ancient Egypt? The world of papyrus is always on the move. Air sacs in the stem give it great buoyancy. Huge papyrus rafts drift on the current. These restless islands of reeds constantly redefine the channels of the waterways. It's no wonder explorers found the Sudd impenetrable. A healthy population of dangerous animals also helps maintain the Sudd's inhospitable reputation. At this time of the year, the huge swamp is, in fact, shrinking. Fish become more densely concentrated, making them easier prey. But it's not just the water that's becoming overcrowded. White-eared kob retreat into the dwindling grasslands of the Sudd during the dry season. When they were last counted, there were thought to be a million of them, one of the greatest concentrations of large animals on Earth, 1,000 per square kilometre. But the overcrowding encourages strange behaviour. The males are forced to fight over females by protecting tiny, merely symbolic, territories. But they aren't the only ones for which the White Nile is a lifeline in the dry season. | |
| 迷宫似的纸莎草丛为大量的鱼群提供了食物和栖息地。这片水域毫无疑问非常丰饶，但它的恩泽真能惠及远方的古埃及农田吗？纸莎草的世界永远都处在运动之中。纸莎草茎中的气囊为它提供了极大的浮力。巨大的纸莎草浮筏在水上载浮载沉。漂浮不定的纸莎草小岛不断改变着这片水域的水道，难怪冒险家们会认为苏德沼泽不可穿越。相当数量的危险野生动物也为维护苏德沼泽的恶名助有一臂之力。每年这个时期的大沼泽地其实都在萎缩。鱼群密密匝匝地聚集在一起，使它们更容易被捕获。但变得更加拥挤的不只是水域。白耳赤羚在旱季时会撤退到日渐萎缩的苏德草地上。人类对它们进行的最近一次估算显示它们有百万之众。它们是地球上分布密度最大的大型动物群之一，每一平方公里就有一千只。然而过度的拥挤必然催化出怪异的行为，公赤羚被迫为争夺雌性去保卫它们小到仅具有象征意义的地盘。不过除了它们，还有其他生物要在旱季中仰赖白尼罗河生存下去。 |
| The labyrinth of papyrus provides food and shelter for enormous numbers of fish. These waters are clearly fertile, but did they nourish the faraway fields of Ancient Egypt? The world of papyrus is always on the move. Air sacs in the stem give it great buoyancy. Huge papyrus rafts drift on the current. These restless islands of reeds constantly redefine the channels of the waterways. It' s no wonder explorers found the Sudd impenetrable. A healthy population of dangerous animals also helps maintain the Sudd' s inhospitable reputation. At this time of the year, the huge swamp is, in fact, shrinking. Fish become more densely concentrated, making them easier prey. But it' s not just the water that' s becoming overcrowded. Whiteeared kob retreat into the dwindling grasslands of the Sudd during the dry season. When they were last counted, there were thought to be a million of them, one of the greatest concentrations of large animals on Earth, 1, 000 per square kilometre. But the overcrowding encourages strange behaviour. The males are forced to fight over females by protecting tiny, merely symbolic, territories. But they aren' t the only ones for which the White Nile is a lifeline in the dry season. | |
| mi gong shi de zhi suo cao cong wei da liang de yu qun ti gong le shi wu he qi xi di. zhe pian shui yu hao wu yi wen fei chang feng rao, dan ta de en ze zhen neng hui ji yuan fang de gu ai ji nong tian ma? zhi suo cao de shi jie yong yuan dou chu zai yun dong zhi zhong. zhi suo cao jing zhong de qi nang wei ta ti gong le ji da de fu li. ju da de zhi suo cao fu fa zai shui shang zai fu zai chen. piao fu bu ding de zhi suo cao xiao dao bu duan gai bian zhe zhe pian shui yu de shui dao, nan guai mao xian jia men hui ren wei su de zhao ze bu ke chuan yue. xiang dang shu liang de wei xian ye sheng dong wu ye wei wei hu su de zhao ze de e ming zhu you yi bi zhi li. mei nian zhe ge shi qi de da zhao ze di qi shi dou zai wei suo. yu qun mi mi za za di ju ji zai yi qi, shi ta men geng rong yi bei bu huo. dan bian de geng jia yong ji de bu zhi shi shui yu. bai er chi ling zai han ji shi hui che tui dao ri jian wei suo de su de cao di shang. ren lei dui ta men jin xing de zui jin yi ci gu suan xian shi ta men you bai wan zhi zhong. ta men shi di qiu shang fen bu mi du zui da de da xing dong wu qun zhi yi, mei yi ping fang gong li jiu you yi qian zhi. ran er guo du de yong ji bi ran cui hua chu guai yi de xing wei, gong chi ling bei po wei zheng duo ci xing qu bao wei ta men xiao dao jin ju you xiang zheng yi yi de di pan. bu guo chu le ta men, hai you qi ta sheng wu yao zai han ji zhong yang lai bai ni luo he sheng cun xia qu. |
| The labyrinth of papyrus provides food and shelter for enormous numbers of fish. These waters are clearly fertile, but did they nourish the faraway fields of Ancient Egypt? The world of papyrus is always on the move. Air sacs in the stem give it great buoyancy. Huge papyrus rafts drift on the current. These restless islands of reeds constantly redefine the channels of the waterways. It' s no wonder explorers found the Sudd impenetrable. A healthy population of dangerous animals also helps maintain the Sudd' s inhospitable reputation. At this time of the year, the huge swamp is, in fact, shrinking. Fish become more densely concentrated, making them easier prey. But it' s not just the water that' s becoming overcrowded. Whiteeared kob retreat into the dwindling grasslands of the Sudd during the dry season. When they were last counted, there were thought to be a million of them, one of the greatest concentrations of large animals on Earth, 1, 000 per square kilometre. But the overcrowding encourages strange behaviour. The males are forced to fight over females by protecting tiny, merely symbolic, territories. But they aren' t the only ones for which the White Nile is a lifeline in the dry season. | |
| mí gōng shì de zhǐ suō cǎo cóng wèi dà liàng de yú qún tí gōng le shí wù hé qī xī dì. zhè piàn shuǐ yù háo wú yí wèn fēi cháng fēng ráo, dàn tā de ēn zé zhēn néng huì jí yuǎn fāng de gǔ āi jí nóng tián ma? zhǐ suō cǎo de shì jiè yǒng yuǎn dōu chǔ zài yùn dòng zhī zhōng. zhǐ suō cǎo jīng zhōng de qì náng wèi tā tí gōng le jí dà de fú lì. jù dà de zhǐ suō cǎo fú fá zài shuǐ shàng zài fú zài chén. piāo fú bù dìng de zhǐ suō cǎo xiǎo dǎo bù duàn gǎi biàn zhe zhè piàn shuǐ yù de shuǐ dào, nán guài mào xiǎn jiā men huì rèn wéi sū dé zhǎo zé bù kě chuān yuè. xiāng dāng shù liàng de wēi xiǎn yě shēng dòng wù yě wèi wéi hù sū dé zhǎo zé de è míng zhù yǒu yī bì zhī lì. měi nián zhè gè shí qī de dà zhǎo zé dì qí shí dōu zài wěi suō. yú qún mì mì zā zā dì jù jí zài yì qǐ, shǐ tā men gèng róng yì bèi bǔ huò. dàn biàn de gèng jiā yōng jǐ de bù zhǐ shì shuǐ yù. bái ěr chì líng zài hàn jì shí huì chè tuì dào rì jiàn wěi suō de sū dé cǎo dì shàng. rén lèi duì tā men jìn xíng de zuì jìn yī cì gū suàn xiǎn shì tā men yǒu bǎi wàn zhī zhòng. tā men shì dì qiú shàng fèn bù mì dù zuì dà de dà xíng dòng wù qún zhī yī, měi yī píng fāng gōng lǐ jiù yǒu yī qiān zhǐ. rán ér guò dù de yōng jǐ bì rán cuī huà chū guài yì de xíng wéi, gōng chì líng bèi pò wèi zhēng duó cí xìng qù bǎo wèi tā men xiǎo dào jǐn jù yǒu xiàng zhēng yì yì de dì pán. bù guò chú le tā men, hái yǒu qí tā shēng wù yào zài hàn jì zhōng yǎng lài bái ní luó hé shēng cún xià qù. |
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