This article examines the significance of the Hong Kong countryside as a site of knowledge production. By analyzing biologist Geoffrey Herklots’ career as a university academic, a naturalist, and a colonial official, I demonstrate the scientific and geopolitical importance of biology in interwar Hong Kong. Drawing on an article in the journal Herklots created (Hong Kong Naturalist), a proposal for a colonial museum, and the connection between biology and wartime experience, I illustrate the role biology plays in the imagination of the British Empire as well as how Hong Kong’s countryside can be understood through the lens of science.