This Week in Nature

In Nature Communications, a group of Australian investigators presents an analysis of ancient cave art and bison DNA to shed light on the rise of the modern European bison. The animals are distinct from their American counterparts, but their origins were unclear due to a gap in the fossil record. The researchers analyzed the genomes of 64 ancient European bison and found that they resulted from a hybridization between the long-extinct Steppe bison and aurochs more than 120,000 years ago.

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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.