Nature Season 22, Episode 12

Land of the Falling Lakes · PBS · Sunday, April 18

“Land of the Falling Lakes” looks at Croatia's Plitvice Lakes National Park, an ancient forest of stunning beauty and waterways continuously evolving from limestone formations. Included: the brown bear, one of which intrudes on a wolf pack's meal of wild boar; and the olm, a subterranean creature without eyes which navigates and hunts via bioelectrical senses.