Fossils are the remains or prints of animals and plants that have been preserved in rocks. Quite often, only the hard parts of an animal, such as the teeth or bones, are left. The rest has rotted away. But even when nothing remains of an animal, it may have left a hollow, the exact shape of its body, in the rock. Sometimes an anima left a footprint when it when it walked in soft sand or mud.
A single footprint may be all that remains of an animal that was big as four cars. Fossils can take millions of years to form.
Please talk to your adult helper before you visit other sites!!!!!
If you want a site about fossil hunters of the past then go to the Zoom site on http://www.enchantedlearning.com/subjects/dinosaurs/glossary/Paleontologists.shtml