Animal FinsRegenerationZebrafishZebrafish ProteinsExtremitiesAnimal StructuresTailAnimals, Genetically ModifiedNerve RegenerationLiver RegenerationEpidermisWound HealingFin WhaleFibroblast Growth FactorsCell ProliferationBone RegenerationGene Expression Regulation, DevelopmentalMesodermHomeodomain ProteinsSignal TransductionGuided Tissue RegenerationSwimmingPerciformesPlanariansHepatectomySalamandridaeAmbystoma mexicanumAxonsNerve CrushStem Cells