A representation of evolutionary relationships is called a phylogenetic tree. These diagrams illustrate the evolutionary connections between various organisms, depicting how species have diverged from common ancestors over time. Phylogenetic trees utilize genetic, morphological, and fossil data to infer relationships, helping scientists understand the evolutionary history of life on Earth. The branching patterns indicate speciation events, and the length of branches can reflect the amount of evolutionary change. Phylogenetic analysis is crucial for studies in evolutionary biology and taxonomy.