Students of science have contrasted Japanese and Western primatology. This paper aims to test such claims by comparing two long-term African field projects, Mahale and Gombe, in terms of research productivity as measured by scientific publications. Gombe, directed by Jane Goodall since 1960, and Mahale, directed by Toshisada Nishida since 1965, have much in common, in addition to their main focus on the eastern chimpanzee, Pan troglodytes schweinfurthii. They have produced similar total numbers of journal articles, books and chapters since the projects were founded. When these are categorized by subject matter, the main topics make up a similar proportion of publications, e.g. social relations, behavioural ecology, sex and reproduction, etc. Although most research output is on similar subjects, there are important differences between the sites, e.g. Mahale emphasizing medicinal plant use, Gombe predominating in modelling human evolution. Both sites favour publishing in Primates among the specialist primatological journals, but important differences exist in publishing elsewhere. Overall, there are more similarities than differences in scientific publishing between Mahale and Gombe, despite the asymmetry in flow of personnel between the two sites
