DolphinNews&View - Smarter than You Think Newfound studies on the complexity of cetacean Brains By The workings of the dolphin brain have long

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Smarter than You Think: Newfound studies on the complexity of cetacean  Brains.   By:    The workings of the dolphin brain have long been a mystery of evolution, but a new  study sheds some light onto how complex it really is. The bottlenose dolphin and its  relatives are widely considered to be  among the most intelligent creatures in  the animal kingdom.  But what is it that  makes them so smart? The brains of  dolphins, porpoises and whales which  make up the order Cetacea are poorly  understood by scientists. Common  belief has held that the cerebral cortex  of cetaceans is relatively simple and  uniform, but a recent study of its  structure reveals that it is much more  complicated than previously believed.  This is an important step in  understanding the way cetaceans think,  and will help us see how dolphins have  developed intelligence so similar to  humans’ by a very different evolutionary  path. Most dolphins and porpoises  have brains approximately 2-4 times  larger than other mammals their size. In  contrast, humans’ brains are about 7  times larger than other mammals,  whereas nonhuman primates range only 
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This note was uploaded on 04/01/2008 for the course BS 149H taught by Professor Getty during the Fall '07 term at Michigan State University.

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DolphinNews&View - Smarter than You Think Newfound studies on the complexity of cetacean Brains By The workings of the dolphin brain have long

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