Fossil collections are groups of preserved remains or traces of ancient organisms, such as plants and animals, that lived millions of years ago. These collections can include bones, teeth, shells, and even footprints, providing valuable insights into the history of life on Earth. Fossils are typically found in sedimentary rocks and can be studied by paleontologists to understand evolution and past environments. Many museums and universities maintain fossil collections for research and education. Notable collections, like those at the American Museum of Natural History or the Smithsonian Institution, showcase a variety of fossils, helping to engage the public and promote interest in paleontology and geology.