In an age when advanced molecular and genetic tools allow studies in v arious systems, amphibian metamorphosis still offers perhaps the most accessible model for the study of postembryonic organogenesis and mech anisms of hormonal regulation during vertebrate development. Amphibian Metamorphosis: From Morphology to Molecular Biology integrates findin gs from the most recent research with earlier observations, providing molecular and mechanistic insights into the signal transduction pathwa ys underlying tissue-specific transformations during metamorphosis.