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1: Tongue Print
Don't stick out your tongue if you want to hide your identity. Similar to fingerprints, everyone also has a unique tongue print!
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the Editors of Publications International, Ltd.. "16 Unusual Facts About the Human Body" 24 September 2007. HowStuffWorks.com. <http://health.howstuffworks.com/human-body/parts/16-unusual-facts-about-the-human-body.htm> 09 February 2012.
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