Yet another evidence of the smartness of dolphins can be demonstrated by a new study which recently revealed how bottlenose dolphins communicate by using signature whistles. Researchers at the University of St. Andrews conducted sound playback experiments with wild bottlenose dolphins on the east coast of Scotland, Xinhua reported. Based on an earlier work that showed that dolphins often copy signature whistles of their close relatives and friends, this ...
via Medindia Health News
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Lake forest health and fitness http://healthandfitness1blog.blogspot.com/2013/07/dolphins-communicate-using-signature.html
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