Amazon dolphins bear little resemblance to our beloved Flipper.

亚马逊河豚和我们钟爱的鳍状肢动物一点儿都不像。

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When this inland sea retreated, Hamilton hypothesizes, the Amazon dolphins remained in the river basin, evolving into striking creatures.

哈密尔顿推测，当这片内陆海退去，亚马逊河豚在流域留了下来，逐渐进化为一种恐怖动物。

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Every spring the Amazon dolphins get to leave the confines of their river channel for a taste of their former habitat.

每年春天，亚马逊河豚离开所属河道的范围，到从前的栖地去晃一晃。

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This newfound reptile appears to be the first known freshwater mosasaur, an animal comparable to modern river dolphins now seen in the Amazon, Ganges and Yangtze rivers.

MSN: Huge 'sea monster' ruled ancient rivers

River dolphins of that colour can be spotted in the Amazon River.

BBC: Into Peru��s Amazonian heart of darkness

Peru-based Aqua Expeditions launches the MV Aria this month, a 150-foot boat that will sail up the northern Amazon to view remote locations and rare wildlife like the native pink dolphins.

BBC: Openings