最近两项不相关的研究结果支持了这样一种观点，即海豚可能与人类和类人猿具有某些相同的认知能力。
The results of two recent unrelated studies support the idea that dolphins may share certain cognitive abilities with humans and great apes.
2005年，科学家们在新几内亚的南部水域得到了一个意想不到的发现：一种叫做矮鳍的海豚新物种。
Scientists made an unexpected discovery in the waters south of New Guinea in 2005: a new species of dolphin called the snub-fin.
首先，他们中的一个人对海豚做了一项研究，训练它识别一种特殊的高音。
It began with a study one of them did on a dolphin, who had been trained to recognize a particular high-pitched tone.
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