SciWo has a blog post responding to a reader's question about whether it's worth pursuing a PhD for someone who already has a master's in science. The argument for staying put, SciWo says, is that the reader is currently happy: "You've found a sweet gig where you can see yourself staying.

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Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.