Rather than clarifying how speciation occurs, peering into closely related animals' genomes can raise more questions about the process. At Quanta, Emily Singer discusses two crow species — the black carrion crows and the black and gray hooded crows — that can interbreed and yet mostly remain separate species.

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In Science this week: International Wheat Genome Sequencing Consortium publishes the bread wheat cultivar Chinese Spring reference genome, and more.

At his FDA Law Blog, Jeffrey Gibbs discusses FDA's technical assistance for the draft Diagnostic Accuracy and Innovation Act.

The New York Times reports that genetic testing has uncovered unfaithful penguins at a Utah aquarium.

Cancer researcher loses funding under new Wellcome Trust anti-bullying policies, the Guardian reports.