title: Endocrinology of the amphibian pineal.
mesh_terms: D000663:Amphibians; D000818:Animals; D001001:Anura; D002856:Chromatophores; D003624:Darkness; D008027:Light; D008550:Melatonin / Q000502:physiology*; D010870:Pineal Gland / Q000502:physiology*; D012867:Skin
chemical_list: D008550:Melatonin