title: A grey squirrel spectral sensitivity by heterochromatic flicker and its implications.
mesh_terms: D000818:Animals; D003118:Color Perception / Q000502:physiology*; D005260:Female; D008297:Male; D010786:Photoreceptor Cells / Q000502:physiology; D012589:Sciuridae / Q000502:physiology*; D013053:Spectrophotometry