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In the early, online edition of the Proceedings of the National Academy of Sciences, a Pennsylvania State University-led team takes a look at the history and genetic diversity of the scarlet macaw, Ara macao cyanoptera, with samples from the southern US and northern Mexico that stretched back 800 years to more than 1,100 years.

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The New York City Police Department will be removing DNA profiles from a local database if they are from people who were never convicted of a crime, the New York Times reports.

Science reports that accusations of sexual assault against a microbiome researcher has also led to questions about his academic certifications.

Wired reports that researchers are analyzing the DNA fish leave behind in water to study their populations.

In Science this week: comprehensive cellular map of the human thymus, evidence of admixture between the ancestors of Neanderthals and Denisovan and a 'superarchaic' population.