BioCommerce Week Index companies spent at least $13 billion on 13 M&A deals during the first half of 2006 (see table) — compared with at least $2 billion on 13 deals in last year's first half. But the size and expected upshot of a couple of these transactions on the broader life sciences market are expected to push others to follow suit.

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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.

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

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