Phylogenetics is the study of the evolutionary relationships among groups of organisms. It reconstructs the history of life by inferring common ancestry and tracing the patterns of diversification across different taxa. This process relies on analyzing homologous characteristics, which can include molecular data such as DNA and protein sequences, as well as shared anatomical or morphological traits. The resulting visualizations, often depicted as cladograms or phylogenetic trees, represent hypotheses about the branching points of evolutionary history. Through the rigorous application of statistical methods, the field seeks to test evolutionary models and understand the deep biological connections that link diverse life forms.