Growing up in poverty and under other social stresses shortens kids' telomeres, making them more vulnerable to cancer and aging-related disorders, Quartz reports.

A study from Daniel Notterman and his colleagues drew on data from the multi-year Fragile Families and Child Wellbeing Study of 4,500 children born between 1998 and 2000 in urban areas. For this, Notterman and his team focused on the extremes and examined the DNA of the 40 kids with the most and least advantages from that study.

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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.