Phylogenetic analysis is a research area within biology that focuses on studying the evolutionary relationships between organisms. It involves the construction of phylogenetic trees, which depict the evolutionary history and relatedness of different species based on their genetic, morphological, or biochemical characteristics. Phylogenetic analysis helps researchers understand how organisms are related to each other, their shared ancestry, and how they have evolved over time. This field is important for various biological disciplines, including evolutionary biology, systematics, and biodiversity conservation.