This Week in PLOS

In PLOS One, researchers from the National Oceanic and Atmospheric Administration and the University of Washington report on killer whale diet clues detected using DNA-based analyses of the animals' poop samples. The team pooled 175 fecal samples collected over the summers from 2006 to 2011 into 13 groups, which were compared with two control samples with known DNA compositions as well as sequence databases containing information for 19 fish that may fall prey to killer whales.

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Researchers find that a personalized medicine approach could help people who experience pain while taking statins, New Scientist reports.

US National Science Foundation is continuing its responsible research conduct training policy despite its flaws, ScienceInsider reports.

A CRISPR-themed meeting explored how the tool could and should be used, Wired reports.

In Science this week: database of proteins' effects on cancer, targeted error correction sequencing, and more.