This Week in Cell

In the current issue of Cell, German researchers outline the strategy that they used to find hundreds of genes involved in hearing in fruit flies. By comparing gene expression patterns in sections of sound-sensing antenna in flies with or without an organ in that antenna that's needed to transmit sound, the team found 274 Drosophila genes contributing to auditory organ function. While four of these had been linked to hearing in the fruit fly model organism previously, they note, the rest are new.

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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.