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Random Fun: The Hierarchy of Robot Needs
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Thoughts on Maslow’s Hierarchy
Lowell Heddings, better known online as the How-To Geek, spends all his free time bringing you fresh geekery on a daily basis. You can follow him on Google+ if you'd like.
Most birds are tetrachromats, they see colors in four channels instead of the three channels humans see; this super-color vision is believed to assist them in food gathering and mate selection.
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