Monday, June 28, 2010

Bifurcated Senses - The Power of Two

Two is better than one.  Why?  Because you can compare and contrast the two side's concentrations and hone in on the location of the smell.  That's why we have two nostrils (at least, that used to be the reason), that's why snakes have forked tongues, and why we have two ears (two eyes is for greater range of vision and for 3-D imaging, which is a similar contrast of concentrations). 

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