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Layers of Sediment Show How...
Group in Dramatic Silhouette...
Zoom from Mt. McKinley to...
Sun Reflects Off Mighty Mekong...
Slow-Motion Motorboat Ride on...
Close-Up of Fish Flapping its...
Passing By Eroded Shore of...
Sun Reflects Off Mekong...
Close-up of Fish that Swims...
Zoom In Over Flowing River to...
Zoom from Mt. McKinley (Gray...
Dorsal Fin of Fish in Shallow...