A new bill sponsored by US Representatives Jim Cooper (D-Tenn.) and Cynthia Lummis (R-Wyo.) would require studies to include both male and female cells, tissues, and animals, the Huffington Post reports.

"I was shocked that something as basic as treating men and women the same had often been overlooked in clinical trials," Cooper tells Sam Levine at HuffPo.

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In PNAS this week: genomic study of group B Streptococcus evolution, selection on the X chromosome in great apes, and more.

Changing the fat and fiber content of people's diets affects their gut microbiome, metabolome, and colon cancer risk, researchers say.

Broken links are found throughout academic publications, and some services are trying to combat such link decay.

Nick Stockton at Wired says that a pause in studying genome-editing tools should be used to find a path forward.