Advanced orthology clustering of bilaterian and non-bilaterian sequences identifies 157 bilaterian-specific genes which are linked to key morphological features of this animal group.

Expression patterns and biophysical properties of acid-sensing ion channels in numerous bilaterian animals offer insight into the deployment of ion channels by the evolving nervous system in complex animals.

A genome analysis of Xenoturbella bocki provides insights into the biology of this enigmatic marine worm and enhances our understanding of early bilaterian evolution.

Novel statistical tests to compare networks enable the evaluation of mathematical definitions of left/right symmetry in a larval Drosophila brain connectome.

Spontaneous bilateral fluctuations add with evoked cortical activity and explain much of the variability in sensory responses.

Interactions between Hox and TALE genes, which generate bilaterally symmetrical body plans, originated in early multicellular animals.

Molecular profiling of annelid myocytes reveals that the last common protostome-deuterostome ancestor already possessed a dual musculature, with visceral smooth muscles ensuring digestion and somatic striated muscles ensuring locomotion.

The identification of 31 neuropeptide GPCRs in the sea anemone Nematostella vectensis provides a rich resource to study peptidergic signaling in cnidarians and suggests that cnidarian and bilaterian peptidergic systems diversified independent from each other from a few ancestral systems.

Protein coding genes strongly support a sister group relationship between Placozoa and Cnidaria to the exclusion of Bilateria, contradicting previous phylogenies, which have likely been misled by pervasive compositional heterogeneity.

The expression of 'bilaterian-mesodermal’ genes changes the epithelial properties of the endomesoderm during the embryogenesis of the cnidarian Nematostella vectensis.