The Amur tiger may have bounced back from the brink of extinction (there are now 500 in the wild and 421 in captivity, up from the 1940s low of 20 to 30) but a new study in Molecular Ecology says that their genetic diversity is the lowest ever measured for wild tigers, says the BBC. Further compounding the problem is that there are two populations of the wild tiger that do not intermingle as they are geographically separated.

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The Jackson Laboratory has filed a complaint accusing Nanjing University of breeding and re-selling its mouse models, the Hartford Courant reports.

Oxford researchers are turning to virtual reality to visualize genes and regulatory elements, Phys.org says.

In Science this week: neutrophils rely on microRNA to protect against lung inflammation, and more.

China is moving forward with plans to sequence a million citizens, the Wall Street Journal reports.