title: Visual mechanisms in the copepod Copilia.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003080:Cold Temperature; D003445:Crustacea / Q000033:anatomy & histology* / Q000145:classification / Q000502:physiology; D005123:Eye / Q000033:anatomy & histology*; D005260:Female; D007908:Lens, Crystalline / Q000033:anatomy & histology; D008029:Lighting; D008297:Male; D009068:Movement; D009799:Ocular Physiological Phenomena; D009900:Optic Nerve / Q000033:anatomy & histology; D010933:Plankton; D012727:Sex Characteristics; D013997:Time Factors