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[[File:Lower spine.gif|300px|thumb|right]]
The '''spine''' is a part of the skeletal system designed to help us stand upright. Not all [[Humans|humans]] have one.<ref>[http://www.newyorker.com/humor/borowitz-report/scientists-baffled-by-mcconnell-and-ryans-ability-to-stand-upright-without-spines SCIENTISTS BAFFLED BY MCCONNELL AND RYAN’S ABILITY TO STAND UPRIGHT WITHOUT SPINESThe New Yorker's Scientists Baffled by McConnell and Ryan's Ability to Stand Upright Without Spines]</ref>