In Genome Biology this week, Christian Soellner and Gavin Wright of the Sanger Institute discuss a protein interaction screen in zebrafish to identify novel ligands that bind to the ectodomains of 150 zebrafish neural receptor proteins. In screening almost 7,600 interactions, they built a network of 34 cell surface receptor-ligand pairs, while further analysis showed "surprising quantitative variation in receptor binding strengths," they say.

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Vivek Murthy is no longer the surgeon general of the US, the Associated Press reports.

People around the globe took to the streets to support science — some with signs.

Parents who learn of their increased genetic risk of disease also contend with telling their children about theirs, the New York Times writes.

In PLOS this week: loci linked to body mass index measurements, long non-coding RNA expression and urothelial carcinoma prognosis, and more.