Charlie Jacobsma slapped the surface of a pool enclosure at Chicago’s Shedd Aquarium and scanned the water for movement.

Plus, the lights dim in the aquarium for a unique experience. – Elizabeth Von Tersch, Senior Editor Shedd Aquarium is one of the world's largest indoor aquariums, housing around 32,000 creatures.

Shedd Aquarium’s newest rockhopper penguins have been named Douglas (foreground) and Pico. Shedd Aquarium/Brenna Hernandez Share Shedd Aquarium has named its two newest rockhopper penguins ...