Principal findings on dynamics of axonal regeneration and axon-glia interactions in zebrafish. Thus far, three different groups of peripheral axons have been used to study axon regeneration in zebrafish: the pLLn (blue), which innervates neuromasts along the trunk and tail [22,23,24,25,26,27,28,30,32]; motor axons (green), which elongate their branches towards different areas of the myotomes [21,44,45,48,49,53,54]; and sensory axons (red), specifically trigeminal and Rohon-Beard neurons that innervate the skin of the head and the body [61,62,63], respectively. Dynamics of axonal regeneration have been studied in both embryonic and adult zebrafish by using different experimental approaches such as laser-mediated neurectomy, electroablation of pLLn and surgical incisions coupled to time-lapse microscopy.