View from below the Stone Dam in the Kaibab National Forest, Arizona, USA

Mountain stream, Glen Etive, Highland, Scotland, United Kingdom, Europe

Mountain stream and waterfall, Assynt, Highland, Scotland, United Kingdom, Europe

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

Hawaii, Big Island, Hamakua Coast, Waipio Valley, stream rushing over mossy rocks.