牛鲨曾经沿如密西西比河逆流而上数百里，也可以在远离大海的淡水区域发现它们的踪迹。
It's been known to swim hundreds of miles upstream in rivers like the Mississippi and can be found in fresh water many miles from the ocean.
牛鲨曾经沿如密西西比河逆流而上数百里，也可以在远离大海的淡水区域发现它们的踪迹。
It's been known to swim hundreds of miles upstream in rivers like the Mississippi and can be found in fresh water many miles from the ocean.
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