Scientists once believed that only humans were smart enough to recognize themselves in a mirror. That was until chimpanzees and dolphins did it, followed by elephants. In 2006, scientists placed mirrors in front of three Asian elephants to test their self-awareness. They all did something odd, such as using their trunks to pull their ears back and forth. One elephant, Happy, touched a white marking placed above its eye 12 times with its trunk. In a separate 2013 study, researchers found that elephants understand when humans point with their fingers.
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