National Parks are our national treasures, which protect living, breathing ecosystems and the cultural history of the American public. Whether monitoring natural ecosystems or studying historic sites, national park scientists are stewards of our nation’s crown jewels. Working unobtrusively and mostly out of sight, park scientists do the rigorous science needed to document park ecological health and to conserve historical riches. Science Minute Movies profile staff in eight Pacific Northwest national parks and offer behind-the-scenes looks at science in action.