Skeletons Reveal Human and Chimpanzee Evolution

Key Concepts

• Phylogenetic trees illustrate the evolutionary relationships of organisms.
• Careful anatomical comparisons generate important data for understanding evolutionary relationships.
• The analysis of fossils can provide both anatomical and behavioral data.
• Comparing Ardipithecus ramidus fossils with human and chimpanzee bones reveals that Ardipithecus had features of both species.