Great Smoky Mountains National Park: Elk have been reintroduced to the National Park and are thriving now again. This image is from America's National Parks.
Doclights GmbH/NDR Naturfilm/Jan Haft/ Kay Ziesenhenne
Olympic National Park: The Pacific Ocean along coast of the Olympic National Park are an underwater haven for countless species. This image is from America's National Parks.
Lake Kariba Matusadona National Park Zimbabwe, Africa: Eastern Pride makes a big leap over a creak fearing a croc that was patrolling about 10 meters away. This image is from The Lakeshore Killers.
Yosemite National Park, Calif.: The Yosemite National Park covers an area of more than 1,200 square miles. This image is from America's National Parks.