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Map showing the five nations of the Iroquois Confederation. Source: Smithsonian Institution
Matt Daniel's WeatherGlobe
U.S. snow and ice in 2013 compared to 2012
Blogus scientificus by Alex Reshanov
Humans aren't top predators, says new report
Earth Trekker by Deanna Conners
It’s time for Audubon’s Christmas Bird Count