Smithsonian National Museum of Natural History
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X-ray Vision: Fish Inside Out, organized by the Smithsonians National Museum of Natural History and the Smithsonian Institution Traveling Exhibition Service (SITES), is an exhibit traveling to museums across the country through 2015. Visit the SITES page for the tour itinerary.
In the fish ladder at the Hiram M Chittenden Locks north of the centre of Seattle. Through glass, note the moving bubbles as streaks, gives some idea of the water speed. The fish in the foreground is a male chinook, there were other species of salmon in the ladder.