The University of Texas MD Anderson Cancer Center's Andy Futreal and colleagues explore the genetic heterogeneity present in primary melanoma tumors produced in transgenic zebrafish lines that were designed to carry key melanoma mutations in BRAF or NRAS genes but not exposed to harsh ultraviolet light.

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National Geographic reports that marine mammals have lost a gene that could make them more susceptible to organophosphate damage.

NPR reports on Human Cell Atlas Consortium's effort to catalog all the different cell types within the human body.

The Union of Concerned Scientists surveyed US government scientists about Trump Administration policies and more, Science reports.

In PNAS this week: history and genetic diversity of the scarlet macaw, approach for predicting human flu virus evolution, and more.