Evolutionary reduction in tissue number involves the simplification of the seaming process but not signaling during epithelial fusion.

An experimental and computational system has been developed to investigate how wavelike gene expression patterns are generated during embryonic development.

This sesquiterpene hormone likely acted as a morphogenesis-to-differentiation switch in archaic embryos before it evolved its postembryonic function as the status quo regulator of insect metamorphosis.

A combination of unbiased scRNA-sequencing and functional approaches in organoid cultures and injury-repair models in vivo reveals major heterogeneity in adult murine airway basal cells, which is established prenatally and conserved in humans.