Animal FinsRegenerationExtremitiesZebrafishZebrafish ProteinsAmbystoma mexicanumTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensAnimals, Genetically ModifiedAnimal StructuresTailEpidermisForelimbGene Expression Regulation, DevelopmentalMorphogenesisNerve RegenerationWound HealingSalamandridaeLiver RegenerationFibroblast Growth FactorsFin WhalePlanariansMesodermEmbryo, NonmammalianHomeodomain ProteinsCell ProliferationBone RegenerationSignal TransductionIn Situ HybridizationTriturus