Biodiversity, considered as a biological process, encompasses the dynamic mechanisms that generate, maintain, and modify variation in genes, species, and ecosystems through time. It emerges from evolutionary processes such as mutation, recombination, natural selection, genetic drift, and gene flow, as well as ecological interactions including competition, predation, mutualism, and succession. These processes interact across spatial and temporal scales to structure community composition, regulate ecosystem functioning, and influence resilience to environmental change. Biodiversity dynamics are further shaped by speciation and extinction processes, dispersal, landscape connectivity, and anthropogenic drivers that alter selective regimes and disturbance patterns.