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Some of the young have even taken to underwater swimming. They can stay down for more than 30 seconds and appear to do this just for fun. Yet these swimming skills acquired during play will certainly be useful later in life in these flooded mangrove forests. In cooler climes, mud, laid down in estuaries, is colonised by salt marsh grasses and form one of the most productive habitats on the planet. 400, 000 greater snow geese flock to the estuaries along the Atlantic coast of the United States to rest and refuel on their long migratory journeys. This is the end of the river' s journey. Collectively they' ve worn down mountains and carried them to the sea. And all along the way, their fresh water has brought life and abundance to planet Earth. |
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yǒu xiē xiǎo hóu shèn zhì kě yǐ qián shuǐ yóu yǒng. tā men kě yǐ zài shuǐ xià dāi 30 miǎo, bù guò kàn lái zhè jǐn jǐn shì wèi le hǎo wán. dàn shì, zhè zhǒng zài wán lè shí xué huì de yóu yǒng běn lǐng, zài rì hòu hóng shù lín bèi yān shí wú yí shì fēi cháng yǒu yòng de. zài jiào liáng shuǎng de dì qū, hé kǒu yū jī chù shēng zhǎng zhe yán zhǎo zhí wù, yě chéng wéi dì qiú shàng zuì shì hé yú shēng wù qī jū zhī dì. 40 wàn zhǐ xuě yàn jù jí zài měi guó dà xī yáng àn biān de hé kǒu, tā men yú cháng tú qiān xǐ tú zhōng zài zhè lǐ xiū xī bìng bǔ chōng yíng yǎng. zhè lǐ shì hé liú de chū hǎi kǒu, tā men yì qǐ chōng pò le gāo shān, bǎ chén jī wù dài dào le dà hǎi. yí lù shàng tā men de dàn shuǐ gěi wǒ men de dì qiú dài lái le fēng fù de shēng mìng. |