英语听力：自然百科 走进西藏 tibet—13

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The Tibetan brown bear, a close relative of the grizzly⁴, trys to dig the Pikas out from their burrows⁵, even hard, frozen soil presents little obstacle to a determined⁶ bear. The wily Tibetan fox is quick to spot any opputunity. True to form, the crafty⁷ fox claims the prize. 

 

A combination of inaccessabily and ancient traditions, which forbid hunting, means that in some parts of the plateau, wild aninals have remained relatively⁸ undisturbed, even today.

 

But in those areas which are within reach of motor vehicles, these historical safeguards have been undermined. 

 

These changes is illustrated⁹ in the fortunes of the chiru. A century ago, millions migrated cross the plateau. Unfortunately, for the chiru, its fur, knowm as shartoosh ,or  King of wools,  is highly prized . In recent decades, purchase are being able to adventure deep into the wildness killing¹⁰ thousands of chiru. however, the situation is improving, anti-poaching laws are now actively¹¹ enforced, so every summer female chiru can head to the birthing grounds in relative safety.

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