Fossils are used to study a variety of things, including the behavior of ancient animals, the evolution and relationships of different species through phylogenetic trees, and the comparisons between organisms that are currently alive and those that have existed in the past. By analyzing fossils, scientists can learn about the characteristics and behaviors of animals that lived millions of years ago, as well as how different species are related to each other and have evolved over time. This information can provide important insights into the history and diversity of life on Earth.
