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NEW YORK (GenomeWeb) — Birds appear to have rapidly evolved around the time of the mass extinction 66 million years ago that included the dinosaurs, giving rise to the 10,500 bird species we know today, according to results released today from a large-scale international effort to construct an avian tree of life, based on genomic sequence data.

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The first reported coronavirus cases in Europe and the US might not be related to the subsequent outbreaks in those areas, according to the New York Times.

The Wall Street Journal and Kaiser Health News report that antibody testing for SARS-CoV-2 has led to further confusion.

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