Bacteria that incorporate arsenic into their DNA (abcnews.go.com)

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http://news.ycombinator.com/item?id=1962894 - go.com

http://news.ycombinator.com/item?id=1962893 - nytimes.com

http://news.ycombinator.com/item?id=1962846 - nature.com

http://news.ycombinator.com/item?id=1962696 - longislandpress.com

http://news.ycombinator.com/item?id=1962386 - gizmodo.com

http://news.ycombinator.com/item?id=1962200 - gizmodo.com

http://news.ycombinator.com/item?id=1962110 - google.com

http://news.ycombinator.com/item?id=1957823 - skymania.com

http://news.ycombinator.com/item?id=1953228 - kottke.org

Official announcement: http://news.ycombinator.com/item?id=1963296