Because it is now easier to locate older articles, researchers are citing those works more frequently, says an analysis by Google researchers posted at arXiv.

Google's Alex Verstak and his colleagues examined the age of citations referenced in articles published between 1990 and 2013. Any article cited that was 10 or more years older than the one under examination was considered to be 'older.'

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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.