Why do we have 10 fingers and 10 toes?


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  • Changizi, Mark. "Why Do We Have 10 Fingers?" Science 2.0 May 17, 2010. (Aug. 8, 2014) http://www.science20.com/mark_changizi/why_do_we_have_ten_fingers
  • Wolchover, Natalie. "What if Our Hands Had Six Fingers?" Live Science. May 11, 2012. (Aug. 8, 2014) http://www.livescience.com/20241-hands-fingers.html