Evolutionary novelty is promoted by a macroevolutionary pulse of developmental plasticity, but is enhanced by secondary fixation, which permits developmental character release and further morphological exploration.

The diversity of electrophysiological phenotypes of neurons in a functional network increases over development, but can be modulated, and even reduced by sensory experience; allowing them to adapt to a changing and growing brain.

CaMKI and neuroendocrine signaling integrate information about food status to regulate a developmental decision in C. elegans.

Sensory innervation density in the insect associative learning center is set by postsynaptic cells and accomplished by flexible allocation of processes by presynaptic cells.

In the Drosophila larval epidermis both the cell identity and polarity of individual cells change as a result of cell rearrangements.

Active zone release probability is correlated with calcium channel density and calcium influx at single release sites, with release strength increasing in an activity-dependent manner during synapse maturation.

The absence of functional inhibition is a developmentally transient circuit property of corticothalamic feedback that is essential for the central transmission of spontaneous retinal waves.