Undulatory swimming with and without waves of contraction.
D000818:Animals; D005399:Fishes / Q000502:physiology*; D008124:Locomotion; D008564:Membrane Potentials; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology; D012455:Salamandridae / Q000502:physiology*; D013550:Swimming; D013623:Tail / Q000502:physiology; D014562:Caudata / Q000502:physiology*