So far, no one knows exactly what happened in the evolving Marc Hauser melodrama — what did he do? The Chronicle of Higher Education reports that a new document shows Hauser may have fabricated data. The internal university document shows that some of Hauser's research assistants became convinced that he was "reporting bogus data" and that he was very aggressive against those who asked for verification of his findings, the Chronicle's Tom Bartlett says.

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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.