Rods in the antelope ground squirrel.
D000818:Animals; D003623:Dark Adaptation; D004596:Electroretinography; D005260:Female; D008297:Male; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology* / Q000648:ultrastructure; D012160:Retina / Q000502:physiology; D012377:Rodentia / Q000502:physiology*; D012589:Sciuridae / Q000502:physiology*