In PNAS this week, scientists performed phylogenomic analysis of a dataset of 143 proteins and 48 taxa, including 19 excavates, to better distinguish between the known six suprakingdom-level groups of eukaryotes, specifically the group Excavata. Their findings say that Excavata is a monophyletic suprakingdom-level group that is one of the three primary divisions within eukaryotes, along with unikonts and a megagroup of Archaeplastida, Rhizaria, and the chromalveolate lineages.

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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.

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

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