英语听力：探索发现 2012-12-05 美洲大平原 American Serengeti—17
时间：2014-01-26 03:56:03
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（单词翻译）
And all this meat in one small area attract the scavenger1, the short-faced bear. Led by his super sensitive nose, his long limbs carry him many miles a day in search of carrion2. He's picked up a scent3, but where's the carcass? Sometimes the smaller, speedier scavenger gets there first, on this occasion a coyote.
Right now the short-faced bear will take whatever he can get. He hasn't had a decent meal in days, and needs at least one good-sized carcass every week to stay alive. This time the coyote's left him nothing but the skeleton. But with his huge, bone-crunching
jaws4, the bear can crack them open for the
marrow5 locked inside.
With water so scarce elsewhere, animals from miles around
converge6 here in the valley, which is good news for the local lions—their pride territory is now
overflowing7 with food.
Once the midday heat
subsides8, the females rouse themselves to hunt.
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