This Week in Nature

In this week's Nature Communications, a research team from Uppsala University reports the development of a mobile phone attachment that can detect cancer-related DNA mutations, opening the door for in-field cancer diagnosis. The 3D-printed device is essentially a multi-modal microscope capable of detecting cancer-specific DNA sequences using fluorescently labeled probes.

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In a statement, National Institutes of Health Director Francis Collins says sexual harassment is "morally indefensible" and "unacceptable."

Octopuses might owe their intelligence to their liberal alterations to their genes, Cosmos reports.

Stat News and ProPublica report that African Americans are underrepresented in cancer clinical trials.

In Cell this week: genomic analysis of abdominal aortic aneurysm, effect of probiotics on the microbiome, and more.