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The culture of veneration and protection extends right across Tibet, helping to preserve a unique yet fragile ecosystem.
這種尊重保護生靈的文化在西藏傳播開來，從而使這種獨特脆弱的生態環境得到了維持。
Out on the plateau there's a small creature that's at the root of much of the grasslands' delicate ecology. Despite summer snow storms, the pika, a relative of rabbits and hares, is perpetually eating and gathering grass, and digging burrows for its family.
在高原微妙的生態系統中有一種，小型生物生活在生態鏈的底端，盡管暴風雪肆虐，一種與家兔和野兔同類的鼠兔，仍然在不停地吃草并儲存起來。
The pika's constant excavations aerate the soil, which helps the plants to grow.
還給家人刨洞，鼠兔不停地挖洞使空氣進入土壤，幫助植物生長的更好。
In the short summer, the landscape is carpeted with hardy grasses and decorated with endemic flowers.
在短暫的夏天耐寒的草與這兒特有的花兒裝點著大地。
In such a frugal environment, the pika's farming helps to kickstart the food chain. But the pika itself is a very tasty morsel. Its presence has enabled anuneasy relationship to develop between two of the plateau's most opportunistic predators, the fox and the bear.
在這樣原始的環境下鼠兔的活動有益于保持食物鏈的完整，鼠兔肉很可口但是鼠兔數量太少了，它現在的數量勉強能夠維持高原上的兩大肉食動物，狐貍和熊。
