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Selfish genetic elements may either promote or prevent the evolution of reproductive barriers, depending on the extent of gene flow between species.

A novel assay to measure 2-micron stability together with a survey of natural variation among Saccharomyces cerevisiae strains reveals novel means by which yeasts can combat the parasitic 2-micron plasmids.

Tool behaviour of long-tailed macaques leaves archaeological signatures that differ between populations despite similar ecological conditions, highlighting the potential for diversity in material culture.

A computational model of decision making suggests that the dorsolateral prefrontal cortex's role in self-control is more associated with evidence accumulation processes than with inhibition or modulation of value.

A computational method and genome-wide scan of low-coverage single-cell sequencing data from a large sample of human sperm suggests balanced transmission of alleles to the gamete pool.

Participants under acute stress were less willing to exert a relatively low level of physical effort for actions that benefit another person compared to actions that benefit themselves.

Using novel approach to study real-time social interactions shows that mutual action visibility facilitates static and dynamic coordination in both species, but whereas humans employ dynamic turn-taking to equalize rewards, macaques, after training with a human, compete between themselves.

The ultimate driver for the substantial between-species difference in the success of transposable elements, the widely distributed genetic parasite, may lie in the overall chromatin environment.

Sexual reproduction is responsible for the evolutionary success of selfish transposable elements.

Kipferl, a ZAD zinc finger protein from Drosophila, determines the chromatin binding specificity of the heterochromatin protein variant Rhino, defining piRNA clusters and preventing Rhino sequestration by selfish Satellite repeats.