Unless we know how many tigers are left in the wild, and whether their Numbers are increasing or decreasing, we will not be able to conserve them.

如果我们不清楚有多少野外生存的老虎，不清楚它们的数量是上升还是下降，那么我们将不可能保护它们。

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Conservationists said that with none in zoos and almost nothing known about how to keep them in captivity, if the species vanish in the wild they will be extinct.

环保人士表示，动物园没有一头武广牛，也没有一个人知道如何将它们圈养。如果这一物种在野外消失，便意味着它们从此灭绝。

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This shows up in the "implied volatility" of the option, which indicates how wild investors expect market swings to be.

这一现象在期权的隐含波动率中显示出来，隐含波动率正是狂乱的投资者们所预见的市场波动的反映。

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"Sure, watching them might be amusing fun (I can't wait to see that insane lady in the red wig yell at them) but it's never going to be as good as 'Jersey Shore, ' no matter how wild it purports to be, " the website said.

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But without Severino to show them how to survive in the wild, that will be extremely difficult.

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How can the wild swings in debt flows to developing countries be tamed?

ECONOMIST: Global finance