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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
Arabian camels and nomadic people are the most recent in a long line of Saharan pioneers. The history of this great region is told in ancient rock art, glimpses of a vanished world. Just a few thousa2008-07-26 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
The Arabian camel--not even a native , was domesticated in the deserts of Asia and brought to Northern Africa as a means of transport. In the past , Tuareg nomads used camels to move slaves, gold and2008-07-26 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
But this hasn't always been so. Over the last 15 million years, Africa's climate has repeatedly swung from wet to dry and back again as Ice Ages have come and gone. At times the Kalahari h..2008-07-26 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
Teamwork has helped the weavers find a neat solution to the problems posed by the Kalahari sun. But some creatures are even better equipped. Ground squirrels have ready-made parasols. Under the shado2008-07-25 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
Cheetahs are sprinters, not made for a long-distance chase. So they must get close. But springbok have keen senses. True to their name, springbok can leap two meters high. It's jumping with a p..2008-07-25 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
Living underground, mole rats are sheltered from the Kalahari's worst extremes of temperature. We think of deserts as hot places. But nightly temperatures can fall well below zero. At dawn, mee..2008-07-25 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
It’s the wettest of all African deserts, the great Kalahari. The sands of the Kalahari cover more of southern Africa than any other desert. But the higher rainfall here gives it a very distinctive a2008-07-25 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
Within a month, the spring blooms are finished. The plants now set their seeds, taking advantage of the warm summer winds which sweep the desert.For a while, the karoo just glows.But trouble is stiri2008-07-24 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
In spring , the desert undergoes a remarkable transformation. For just a few weeks a year, the flowers of over 3, 000 different plant species turn this desert into the Garden of Africa. This dazzling2008-07-24 编辑：echo
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[自然百科] 探索世界奥秘之Wild Africa - Deserts(浩
On certain nights, the secret is revealed. Warm, damp air moving in from the mid-Atlantic is transformed to fog as it crosses the cold coastal current. A vast blanket of moisture steadily rolls acros2008-07-24 编辑：echo
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