- Ifazebrafishlosesachunkofitstailfin,it'llgrowbackwithinaweek.Aswithhumans,zebrafishskincolourisdeterminedbypigmentcells,whichcontainmelanosomes.ThenewUSstudyofzebrafishhasidentifiedakeycellularpathwaythatappearstotriggerregenerationbyswitchingoncert...
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