A screen utilizing an environmental DNA library in Escherichia coli is used to identify Brig1, a previously unknown anti-phage defence system with homologues across distinct clades of bacteria.

Genomic studies of Heliconius butterflies provide evidence that Heliconius elevatus is a hybrid species, and that its speciation was driven by introgression of traits from Heliconius melpomene into the other parent, an ancestor of Heliconius pardalinus.

Methane emission from a very cool brown dwarf, perhaps arising from an aurora, has been detected in James Webb Space Telescope observations.

We propose a model for a sequential, multistep activation mechanism of metabotropic glutamate receptor subtype 5, including a series of structures in lipid nanodiscs, from inactive to fully active, with agonist-bound intermediate states.

Analysis of projected sub-national damages from temperature and precipitation show an income reduction of 19% of the world economy within the next 26 years independent of future emission choices.