This great Nature & Science website from the National Park Service (NPS) was recently redesigned, and offers visitors a wide variety of information about how the NPS uses science to protect natural resources. The site links to main topic areas for Biology, Natural Sounds, Water, and more. The Biology section includes short informational features on Migratory Birds, Invasive Species Management, Threatened and Endangered Species, and Wildlife Health and Disease -- just to name a few. The main site also links to sections for Students and Teachers, Protecting and Restoring, Science and Research, and more.