Higher, But Cautious

Biotech stocks are climbing high, but Reuters' Deena Beasley writes that a nearly 50 percent increase in the last year has stoked worries about a bubble. She notes that the Nasdaq Biotech Index is up 45 percent as compared to last year and the Pharmaceutical Index is similarly up 32 percent, while during the same timeframe, the S&P 500 Index gained 25 percent.

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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.

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

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