Researchers are turning to a variety of techniques to bring back the American chestnut tree, NPR reports. The chestnut used to make up a quarter of hardwood forests on the East Coast, but it was brought low in the early 1900s by a fungus carried by imported Chinese chestnut trees.

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Technology Review reports that 2017 was the year of consumer genetic testing and that it could spur new analysis companies.

A phylogenetic analysis indicates two venomous Australian spiders are more closely related than thought, the International Business Times reports.

In Science this week: CRISPR-based approach for recording cellular events, and more.

A new company says it will analyze customers' genes to find them a suitable date, though Smithsonian magazine says the science behind it might be shaky.