Eric Walker added Ancient DNA confirms Native Americans’ deep roots in North and South America | Science | AAAS to a number of topics

Eric Walker added a number of topics and Nevada’s public health care option proposal, explained by Nicole Cannizzaro - Vox to Nevada, and added Nevada to US states and territories

Eric Walker added Ancient DNA confirms Native Americans’ deep roots in North and South America | Science | AAAS to Spirit Cave, and added Spirit Cave to Nevada