通过对以光滑鱼为猎食的鱼鹰进行研究发现，它不象其它的食肉鸟类，它有四只同样长而非常有力的爪，并且最外边的一只是可以钩回和前后旋转。

Ospreys specialise in catching slippery fish. Unlike other birds-of-prey, they have four powerful toes of about equal length, while the outer one is reversible and can swivel backwards or forwards.

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通过对以光滑鱼为猎食的鱼鹰进行研究发现，它不象其它的食肉鸟类，它有四只同样长而非常有力的爪，并且最外边的一只是可以钩回和前后旋转。

Ospreys specialise in catching slippery fish. Unlike other birds-of-prey, they have four powerful toes of about equal length, while the outer one is reversible and can swivel backwards or forwards.

youdao