Penguins are marine flightless birds that usually have the same diet of many other seabirds. Penguins’ diet includes small fish, squid, and crustaceans. It is not a hard task for the penguins to eat their prey. They have a hook-shaped bill which can catch hold of the prey without letting them slip down.
There is also spiky bristle that faces back towards the throat which can effortlessly help in clutching the dinner to swallow. Penguins eat their food when they are in the ocean underwater.