This Week in Science

In this week's Science, a pair of Broad Institute scientists describes two new CRISPR-based methods for recording cellular events in bacteria and mammalian cells. Using base editors and Cas9 nucleases, the so-called CAMERA — short for CRISPR-mediated analog multi-event recording apparatus — systems record signal amplitude or duration as changes in the ratio of mutually exclusive DNA sequences or as single-base modifications, respectively.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.