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Electric dolphins: cetaceans with a seventh sense
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The thing is, that with the dolphins (and other animals that have this seventh sense) there are truly physical, identified sense organs that relay the information to the brain. What has not been identified in your link are the sensory organs themselves. The link describes the transit system (which is just the nervous system, really). One needs to have sense organs to sense stuff. Humans would have the seventh sense as well, IF they had evolved hair cells that could actually sense as Dolphins do. [quote]Hanke points out that the electro-sensory organs are derived from whiskers in ancestral animals. These mechanoreceptor organs, like the hair cells in the human ear, mechanically transmit the stimulus of touch or sound waves. The adaptation in Guiana dolphins is fairly new, Hanke says, and he suspects that "it is relatively easy to evolve, to change mechanoreceptor organs into electroreceptors". Indeed, the finding suggests nearly all mammals have at least the potential to evolve it too.[/quote] Please post that evidence. I also think you are confusing the seventh sense of dolphins (which is an electro-sense) with the fabled "seventh sense of the third (or middle) eye" here. They are obviously not the same thing. For dolphins, it would be an eighth sense. [url=http://faq.ozoneasylum.com/397/]WebShaman[/url] | [i]The keenest sorrow (and greatest truth) is to recognize ourselves as the sole cause of all our adversities. - Sophocles[/i]
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