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Living on Top of the World |
| Section: NATURAL SCIENCE / NATURE WALK |
| Author: Dwight G. Smith |
| Publication: The world & I online |
| Issue Date: 2/1/1997 |
| Size: 1,429 Words, 8,679 Characters |
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For thousands of years during the great Ice Age, ancestors of the musk ox roamed the windswept, snowy plains of the northern continents, in the company of the woolly mammoth, the woolly rhinoceros, and other creatures of the ice. Now the Ice Age is over, and the mammoths and rhinos are gone. But the musk ox lives on at the northern extremity of the world, where the short summers are replaced by endless drifts of winter snows and freezing cold.
The musk ox appears to have originated in the cool grasslands of Central Asia. Fossils reveal that the animals once roamed widely over the high Arctic tundra, from Alaska, Canada, and Greenland in the Western Hemisphere to England, Germany, and much of Siberia in the eastern realms. During the last Ice Age, they lived as far south as Kansas, but c...
. . .
...ent by dogs or human activities--including helicopters and snowmobiles--can stampede herds, leaving individuals exhausted and vulnerable. Furthermore, any relaxation of hunting limits may result in excessive killing and may leave too few members to sustain local herds. These magnificent relics of the Ice Age, now inhabiting the top of the world, depend on us for their protection and survival.
(806 of 8,679 characters)
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