This work discusses four practical science communication cases in which we worked with communities from different parts of Mexico in vulnerable situations. We analyze those cases from an interdisciplinary point of view, emphasizing the observation of human rights to propose a new inclusive definition of science communication and new strategies for engaging in horizontal dialogues with cultural groups. This perspective demands a change in methodological procedures, such as performing anthropological work and the co-creation of projects and materials together with all the members of the communities involved. We also propose using novel strategies to reach communities in vulnerable situations.