Grass snake (Natrix natrix), swimming, tonguing, Middle Elbe Biosphere Reserve, Germany, Europe

animal behavior animal behaviour animals in the wild animals animal behavior behaviour biosphere reserve mittelelbe biosphere reserve mittlere elbe biosphere reserves biosphere reserve central europe colubridae colubrids colubrid dart tongue deserted empty europe fauna german federal republic germany grass snakes grass snake habitat lambently lepidosauria middle elbe biosphere reserve middle europe natrix natrix natural environments natural environment natural habitat natural preserve nature conservation area nature reserves nature reserve nobody no one no people poke tongue out reptiles reptile reptilia river landscape elbe scaled reptiles scaled reptile serpentes smelling smell snakes snake squamata sticking out tongue sticking tongue out stick out tongue stick tongue out swimming swim tongues tongue unesco biosphaerenreservat uninhabited water wild animals wild animal wildlife photography wildlife