In Britain, a tradition of scientists actively communicating new developments in their fields with the general public has existed since the Victorian era. During the early twentieth century there were major developments in the nature of scientific communication with the rise of the mass media represented by popular magazines, newspapers and books, alongside the creation of a national radio broadcasting network. Many professional scientists took advantage of these changes to develop non-specialist careers through writing articles, books or radio talks for the enlightenment of the general public or the education of school children. However, most of this bibliographical material is ephemeral and may be ignored when considering the careers of the most distinguished scientists. One such scientist whose non-specialist activities have been generally undervalued is Munro Fox FRS (1889-1967). He was an eminent zoologist who, alongside a successful research career, had a well-developed non-specialist output promoting biological subjects that included many magazine articles and books as well as a substantial number of radio talks, particularly within the British Broadcasting Corporation's (BBC) Broadcasts to Schools programme.