Nerve stimulation and the movement of melanin granules in the pigment cells of the frog's web.
D000818:Animals; D001001:Anura; D002856:Chromatophores; D004558:Electric Stimulation; D007016:Hypophysectomy; D007267:Injections; D007272:Injections, Intralymphatic; D008297:Male; D008543:Melanins; D009074:Melanocyte-Stimulating Hormones / Q000494:pharmacology*; D012584:Sciatic Nerve
D008543:Melanins; D009074:Melanocyte-Stimulating Hormones