African penguins have a more varied diet than penguins in more southern latitudes that mainly feed on krill, a shrimp-like crustacean. The Benguela Current—a cold, nutrient-rich ocean current that follows their native southwest coast of Africa—supports a rich ecosystem of marine life, including dense schools of anchovies, pilchards and sardines that African penguins prey on. They supplement this primary food source with crustaceans and the occasional squid. This food supply, however, has been diminished by commercial fishing—a human activity that threatens the species’ survival. This slideshow features some of the fish fed to the zoo’s African penguins.