Fossils in amber are important examples of the kinds of forest life that existed tens of millions of years ago. Research into amber specimens provides information about not only the life forms preserved in them, but also about their habitats and other living things in their ecosystem. This 100-million-year-old fossil shows how reptilian feet have remained unchanged despite the passage of so much time. Whatever characteristics living reptiles have now, they are the same as to those living 100 million years ago.