They eat a wide variety of protein-rich food

One of the interesting facts about Penguins is that they eat a wide variety of protein-rich food. Penguins consume a variety of oceanic tiny animals. They consume krill, which are little crustaceans. Krill resemble shrimp in appearance. Depending on where they reside and the kind of penguin they are, different foods are preferred. Along with seafood, penguins naturally consume squid. A little octopus can be consumed by some penguins. While younger penguins scrape krill off the underside of the ice, larger penguins can dive deeper into the sea where they can capture squid and cuttlefish. King penguins can dive to depths of between 300 feet and 900 feet, but little penguins often only dive between 6 feet and 150 feet.

The size of the prey that a penguin consumes greatly depends on its size. The 11.81-inch-long lantern fish are a favorite food of the emperor penguin, which is the biggest species of penguin. Smaller Humboldt penguins, on the other hand, eat sardines. Sardines are little, only a few inches in length. Additionally, due to their opportunistic nature, penguins will consume anything that fits their inclinations. In addition to squid and crustaceans, some penguin species, including king penguins and yellow-eyed penguins, also consume tiny fish such as silverfish, sprats, opal fish, and pilchards.