The study of ancient life forms through fossils is called paleontology. Paleontologists examine fossilized remains, such as bones, teeth, and imprints, to understand the evolution, behavior, and environment of extinct organisms. This branch of science also helps reconstruct ancient ecosystems and the history of life on Earth over millions of years. Paleontology encompasses various sub-disciplines, such as ichnology (the study of trace fossils) and taphonomy (the study of fossilization processes). It serves to uncover crucial insights about biodiversity and evolutionary changes through time.