Ancient life leaves traces that can be recovered and interpreted. Paleontology is the scientific study of fossils and the organisms they represent. It reconstructs the history of life, evolutionary relationships, and past environments.

Fieldwork involves locating, excavating, and documenting fossils in their stratigraphic context. Laboratory work includes preparation, description, and comparison with living and extinct taxa. Paleontologists collaborate with stratigraphers, geochemists, and evolutionary biologists to place fossils in time and in the tree of life.

The discipline has documented mass extinctions, adaptive radiations, and the colonization of land and air. Index fossils remain essential for dating and correlating sedimentary rocks. New imaging and analytical techniques continue to extract more information from even poorly preserved specimens.

• Study of ancient life through fossils
• Reconstructs evolutionary and environmental history
• Combines field and laboratory methods
• Essential for biostratigraphy and evolutionary biology