Early-career researchers can learn about peer review by discussing preprints at journal clubs and sending feedback to the authors.

The evolutionarily conserved polarity protein Crumbs links the regulation of cytoskeleton dynamics and cell-cell adhesion with epithelial morphogenesis.

Cerebellar Purkinje cells represent movements via bidirectional linear changes in spike rate, and activity from single cells is sufficient to reconstruct kinematic changes during bouts of free whisking.

The life cycle and morphology of the sea squirt Ciona intestinalis shed light on vertebrate evolution.

Publication bias, in which positive results are preferentially reported by authors and published by journals, can restrict the visibility of evidence against false claims and allow such claims to be canonized inappropriately as facts.

An international effort is needed to overcome the paywalls, customs regulations and lack of local suppliers that hinder research in low- and middle-income countries.