Embryonic birthdate is a crucial determinant of heterogeneity among CA1 principal neurons, which include a previously overlooked subpopulation of pioneer neurons.

Live imaging coupled with cell lineage tracing in chick and mouse embryos reveal that the cardiac regulatory gene Nkx2.5 is also transiently expressed in early extra-cardiac hemogenic angioblasts that migrate to the heart, yolk sac and dorsal aorta.

Volume-EM reconstruction of a whole-body desmosomal connectome including all muscles and their desmosomal partners in a Platynereis larva provides a detailed view of the organisation of the entire locomotor system in an animal.

Metabolic supplementation attenuates age-dependent declines in regeneration.

Genetic analyses in mice reveal a communication system between the knee joint and the developing bones that could be explored in studies addressing evolutionary changes in body proportions and in future therapies for growth disorders.

Neural tube-associated boundary caps are heterogeneous with a non-neural crest-derived subpopulation that may originate from the developing meninges, which gives rise to derivatives that migrate along nerves to detach and differentiate into skin mural cells.

A novel avian transgenic line allows studying the function of Wnt signaling during embryonic development.

Patterning of dendrites by protocadherin-dependent self-avoidance and self/non-self discrimination is required for proper function of a retinal circuit that computes the direction of motion.