文章列表

• 1.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—17
• Three thousand five hundred meters up in the Sayan Mountains near the Russian-Mongolian border, Siberian ibex search for food. They scratch a living f...
• 2.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—16
• Chipmunks aren't the top collectors of the forest. That prize probably belongs to the colonies of red ants. Worldwide, ants are so numerous their tota...
• 3.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—15
• Thankfully the bear's appetite takes to the bigger prize. Tonight, they both get a share of the spoils. Late August, and as summer slides into autumn,...
• 4.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—14
• But hot tempers on a hot rock beats being on the outside trying to get in. This exclusive resort, isnt accepting new guests. Come evening, a cool mist...
• 5.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—13
• Away from the rocks and into the grasslands, the family of ground squirrels keep a watchful eye. At just three weeks old, four siblings have started t...
• 6.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—12
• After spending a year or so as larvae under water, they transform into winged adults and take to the skies. The millions of tiny flies attract far big...
• 7.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—11
• Thousands of years of isolation turned them into a separate species. In the middle of the lake are the Ushkanyi islands. Here the seals form their col...
• 8.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—10
• But he soon wises up. The thick neck absorbs the blows .The delicate brain is cushioned beneath the core of hollow horns. He defends his claim and rel...
• 9.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—9
• A male with his harem seems at peace. But even without hunters, the life of an alpha male is tense. A challenger comes. It takes over three years for ...
• 10.英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—8
• The Siberia salamander is one of only a few species on the planet that can survive the deep freeze like this. Moving 15,000 km to Siberia's southern s...