Predator avoidance. Good genes. And, sometimes, cataract surgery. And this was part of the longevity recipe for Wellington, Chicago's Shedd Aquarium’s oldest and best-known rockhopper penguin ...

It is thought that the black and white coloring of the penguins is a camouflage which helps them to hide from underwater predators. While penguins are great at diving and swimming, they cannot fly ...

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 ...

Two endangered penguin eggs have successfully hatched at Edinburgh Zoo. The Northern Rockhopper penguins are threatened due to climate change, changes in marine ecosystems and overfishing.