A combination of live cell tracking, cell-lineage tracing and machine learning shows that injured sensory organs repair accurately regardless of the extent of damage.

The fish gill, an ever-growing organ with fast turnover rate, displays dedicated stem-cell populations for growth and homeostasis that are interchangeable upon external challenges.

Several neuronal subtypes found in the early zebrafish olfactory placode are not derived from the neural crest, as previously thought, but from the preplacodal ectoderm.

Spatial and temporal cues intersect, likely via enhancer-promoter looping, to turn on a master identity switch that in turn dictates natural lineage reprogramming with high efficiency and temporospatial precision.

CRISPR-based lineage tracing in the axolotl shows that regenerated limbs are composed of the same cell lineages in the same frequencies as those that gave rise to the original limb.

Lineage tracing at single-cell resolution reveals the presence of mesoteloblasts, the embryonic origin of mesodermal growth zone cells, and diverse cell cycling patterns of these lineages in the 'Polychaete' annelid Platynereis.