Molecular phylogeny is a research area that involves studying the evolutionary relationships between organisms based on their genetic material, such as DNA sequences or protein sequences. By analyzing these molecular data, researchers can determine how different species are related to each other and reconstruct their evolutionary history. This field has revolutionized the study of evolutionary biology and has provided valuable insights into the diversity and relationships of living organisms. Molecular phylogeny is widely used in various fields, including evolutionary biology, taxonomy, and conservation biology.