Two New York City high school students took to the streets to collect more than 200 samples, including hair from classmates, food, and cockroaches, to examine their DNA barcodes, reports NPR's health blog Shot. Brenda Tan and Matt Cost confirmed that their classmates were human (shucks) and identified some mislabeled food. They might have, though, identified a new species of cockroach.

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Gene drives might run into biological resistance, the Economist reports.

Forensic experts exhumed painter Salvador Dalí's body to collect DNA for a paternity test, CBS News reports.

Yale Environment 360 writes that synthetic and conservation biologists aren't always on the same wavelength, but they are trying to reach an understanding.

In Science this week: full CRISPR locus integration complex structure, and more.