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(BBC; News) A new study suggests dolphins are more intelligent than we thought and a great deal more vain.
（英國國家廣播公司報道）一份新的研究顯示，海豚比我們想的更聰明，而且也更愛虛榮。
When given the chance，dolphins would look in a mirror and gaze at markings drawn onto their bodies.
若給予機會，海豚便會照鏡子，凝視著畫在它們身上的記號。
Scientists say this behavior is thought to signify self-recognition and this is the first time a non-primate has shown it.
科學家表示，他們認為海豚這種行為代表自我辨認的能力，而且這是非靈長類動物首次表現(xiàn)出這種能力。
