Even when endangered populations recover, it has proved difficult to reduce or remove CITES protection.

即使濒危物种数量恢复，降低或者去除CITES的保护措施也十分困难。

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When the Endangered Species Act was signed in 1973, it was expected to protect charismatic fauna such as the bald eagle and Yellowstone's grizzly bears.

当1973年《濒危物种法案》签署时，人们期望它能保护一批引人注目的动物，如秃头鹰和黄石公园的北美灰熊。

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By 1973, when the Endangered Species Act became law, only a few wolves remained in northern Michigan and Minnesota.

截至1973年《濒危物种法》颁布之时，只有很少的灰狼存在于北密歇根和明尼苏达州。

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In 1993, Williams ruled against timber interests when the endangered spotted owl was at risk of extinction.

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Mr Colwell, now 20, hopes to prevent future attacks by speaking about the fire he caused and how he endangered lives when his prank went wrong.

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The most innovative element of 432 Park may be the developer's approach to financing the project when large construction loans are an endangered species.

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