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Drug-resistance declines in the laboratory in an antibiotic stress-free environment, indicating that restricting antimicrobial usage in the clinics could be a useful policy.

Clonal development, but not aggregation, promotes the transition of Darwinian individuality from cells to groups, emphasizing the fundamental role of initial multicellular life cycles in the evolution of multicellularity.

Evolutionary dynamics of polyploid plants of the genus Cochlearia during past periods of rapid climate change indicate increased rates of speciation and diversification in response to pronounced glacial cycles and cold periods in particular.

Several different mutations in the SARS-CoV-2 genome have occurred more times than expected by chance in either mink or deer infections, suggesting species-specific viral adaptations to these animals.

New experiments and theory reveal how the ability to see image details depends upon photoreceptor function and eye movements, and how fruit flies (Drosophila) see spatial details beyond the optical limit of their compound eyes.

Chronic exposure to poor optical quality causes a functional reallocation of sensory processing resources that favors perceptual information less affected by the eye's optics.

Mutations conferring resistance to Escherichia coli against the chemotherapy drug gemcitabine can have opposite effects on bacterial drug degradation and therefore can increase or decrease the chemotherapy load on neighboring cancer cells.

Calcium influx during acute cell stimulation triggers a global actin reset in mammalian cells, which is linked to plasma membrane repair and transcription and has implications for our understanding of cell migration, cancer, inflammation and cell stress response.

Laminar fMRI reveals that adaptive processing involves recurrent processing within visual cortex and top-down influences from posterior parietal cortex via feedback.

In the dioecious plant genus Leucadendron, shifts to sex-biased gene expression occurred predominantly in genes with ancestrally high rates of expression evolution, and were not correlated with morphology.