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国家地理 农场变湿地
Dale Aden has been farming most of his life, just like his father, and his father's father. 戴尔亚丁做了大半辈子的农民，他家祖祖辈辈都是农民。 I am a third generation farmer on this land. His land is in Okabena, Minnesota, ri
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国家地理 浴火重生的行星
Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. 宇航员发现了一个全新的太阳系可能在某颗恒星轰轰烈烈的消亡后形成了，犹如凤凰涅
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国家地理 恐怖的吸血蝙蝠
Here are some happy vampire bats. What's causing all this giddiness? A great, big, fat meal has arrived. You can practically hear these bats going Oh, boy! Oh, boy! Better yet, the victim is asleep. This is gonna be like, well, taking blood from a sl
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国家地理 岌岌可危的珊瑚礁
The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor an
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国家地理 以火攻火 保护森林
It's been protected from human impact since 1909. With three million acres, nearly a half million under water, Superior National Forest is largely unspoiled. But now the survival of this national treasure rest with those who would see some of it burn
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国家地理 合作至上的狼群
We are here in Yellowstone National Park to follow some grey wolves and observe the deadly brilliance of the pack. They've learned to cooperate, hunting their prey with many acting as one pack. This mother grizzly knows how to protect its cub and its
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国家地理 地震的危害
April 18, 1906, California's San Andreas Fault snaps, shaking San Francisco for nearly 60 terrifying seconds. When the trembling stops, the disaster is only beginning. Gas lines rupture, setting off massive fires, some 700 people die. Most of the cit
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国家地理 汶川大地震
On Monday, an earthquake in China measuring 7.9 on the Richter scale occurred along a fault where south Asia pushes against the Eurasian Landmass, smashing the Sichuan Plain into mountains, leading to the Tibetan highlands. 周一，中国某断层沿线
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国家地理 龙卷风的形成
Call them twisters or tornadoes. They are nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of t
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国家地理 强热带风暴席卷孟加拉国
Hundreds of thousands of people in Bangladesh, victims of the worst cyclone to hit the country in a decade were desperately awaiting aid on Monday as the official death toll climbed to over three thousand. With relief aid pouring in, rescue teams bat
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国家地理 粮食危机搅动世界
It's being called the world's worst food crisis since the 1970s. Around the globe, food prices have risen about 40% in the last year, sparking protests and violence in at least 14 countries, and pushing the problem to center stage at the United Natio
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国家地理 聚焦燃料电池
For something that could revolutionize the world, it's come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea
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国家地理 熊猫预感地震
Did the pandas in China's Wolong Reserve know that Monday's earthquake was coming before it hit? A British tourist watching the pandas as the quake struck offered a keen observation. 中国卧龙保护区里的熊猫提前就预知道了周一要发生
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国家地理 北极熊觅食记
In Northern Canada, winter slowly loosens its grip, and a young polar bear is hungry. It sniffs a meal already in progress, and decides to play a dangerous game, a food snatch. 在加拿大北部，严冬开始慢慢解禁，一只小北极熊早已饥
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国家地理 世上最大的异教徒陵墓
The Valeri Mausoleum, the largest and most luxurious of 22 pagan tombs buried under St. Peter's Basilica in Vatican City, was reopened on Tuesday, according to the Associated Press. 据美联社报道，位于梵蒂冈城圣彼得大教堂下的22座异
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