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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Researchers hope to tease out the signature effects that different carcinogens leave on the genome to determine their contributions to disease, Mosaic reports.

The Wall Street Journal looks into the cost of new gene therapies.

An Imperial College London-led team reports that it was able to use a gene drive to control a population of lab mosquitos.

In PNAS this week: genomic effects of silver fox domestication, limited effect of mitochondrial mutations on aging in fruit flies, and more.