Human evolution is studied using several types of evidence, including fossilized bones and teeth, stone tools, footprints, archaeological sites, and DNA.
Each source provides different clues. Fossils help researchers study anatomy and movement, archaeological evidence reveals aspects of early behavior and technology, and genetics helps explain relationships among human populations and our evolutionary relatives.

One important point is that evolution is a branching process. Scientists continue to investigate the relationships between different hominin species as new discoveries emerge.
The Campus Review offers an introductory timeline of seven commonly discussed stages of human evolution:
https://thecampusreview.com/stem/7-stages-of-human-evolution/Which type of evidence do you find most interesting when studying human origins?