This paper presents an analysis of the scientists' perceptions of public communication on the scientific themes related to the archaeological sites of Atapuerca (Spain), which are included in the UNESCO World Heritage List. Based on a qualitative/ethnographic methodology, testimonies from researchers were collected on the impact of dissemination in the field of heritage and scientific culture. Findings show a communication imprint that is inherent to the scientific and management project, in which the stakeholders perceive a great public responsibility.