NEW YORK, Feb. 6 - Three years ago, a group of researchers in Washington state developed a microarray that could detect and monitor microbes in environmental samples. Their goal, to make a chip that can be used in the field for  bioremediation projects, happened to lead them to another discovery: a cheap and no-fuss way to make low-density microarrays.

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Labs in the US and South Korea are hoping to bring the woolly mammoth back from beyond extinction, Newsweek writes.

Geneticist Adam Rutherford speaks with National Geographic about paleogenetics, race, and more.

Researchers link genetic links between education and smoking and longevity.

In PNAS this week: influence of gene environment interactions on polygenic traits, epigenetic features affecting fruit fly foraging, and more.