In this two-part conversation, ecologist Bastien Dehaudt shares his PhD research in Cameroon, where he studied duikers, small forest antelopes that play a large role as seed dispersers. He explains that duikers disperse seeds through two primary internal pathways: regurgitation and defecation. Together, these pathways influence how far seeds travel, where they establish, and which tree species successfully regenerate. Bastien's work expands our understanding of how different dispersal pathways function, how mammals shape forest composition, and why protecting wildlife is essential for sustaining the ecological processes that maintain tropical forest diversity.