Pak special issue photogallery.
D000818:Animals; D004330:Drosophila; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D009446:Neurobiology / Q000266:history*; D010781:Photography / Q000266:history; D014785:Vision, Ocular / Q000502:physiology*