Nature News this week examines an increase in the use of dogs as neurogenetics research subjects. Jonathan Flint at the Wellcome Trust Center for Human Genetics tells Nature's David Cyranoski that searching for genes that cause psychiatric problems in humans has proven to be "hard work with slim pickings." Cyranoski says that because of their more than 200-year-history of selective inbreeding, it's "relatively easy to track down the genes responsible" in dogs.

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US Attorney General Jeff Sessions is considering using DNA tests to determine relatedness between adult and child migrants, the Daily Caller reports.

Bloomberg reports that Brainstorm Cell Therapeutics plans to offer a treatment it is developing under the "right to try" law for hundreds of thousands of dollars.

In Nature this week: expansion of disease-resistance genes among long-lived oak trees, and more.

In a proof-of-concept study, researchers report being able to determine age from dried bloodstains, Discover's D-brief blog reports.