title: Rod and cone disc shedding in light-entrained tree squirrels.
mesh_terms: D000818:Animals; D002452:Cell Count; D003624:Darkness; D005260:Female; D008027:Light; D008297:Male; D008854:Microscopy, Electron; D010507:Periodicity; D010586:Phagocytes / Q000648:ultrastructure; D010786:Photoreceptor Cells / Q000502:physiology* / Q000648:ultrastructure; D010857:Pigment Epithelium of Eye / Q000648:ultrastructure; D012589:Sciuridae / Q000033:anatomy & histology / Q000502:physiology*; D013997:Time Factors