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webSamantha MathewsonNBC News2019-09-24
webDave Whamond2017-08-15
webCBS News2019-07-27
webFiona McMillanNational Geographic2019-11-04
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webDouglas MainNewsweek2016-01-28
webTia GhoseLiveScience2015-02-26
webUtah State Office of Education2013-01-01
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webBill Watterson1988-09-15