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This Week in Science

In Science this week, a group of British investigators publishes a study showing that genetic mutations associated with cancer are common in esophageal epithelial tissue of older, healthy individuals. The investigators sequenced normal esophageal epithelium from nine donors aged 20 to 75 years and find strong positive selection of clones carrying mutations in 14 cancer genes.

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The Guardian reports that the Mammalian Genetics Unit at the Harwell Institute is to close.

Scientific research itself contributes to plastic waste and isn't very sustainable, FiveThirtyEight reports.

Restaurants in the US may soon serve AquaBounty's genetically modified salmon, according to the Associated Press.

In Science this week: three studies from the Ruminant Genome Project, and more.