But between the two, there are also some similarities. Both the differences and similarities will be explained in this report. A penguin is, as most people know, a flightless bird which lives mainly in colder climates of the southern hemisphere. Some species do live as far north as the equator, but only in areas near cold ocean currents. These birds are very well adapted to swimming.
Some species can make dives over eight hundred feet deep.
Along with this comes the ability to hold their breath for a very long time. The Emperor penguins can hold their breath for up to eighteen minutes. Most species of penguins feed on crustaceans such as krill, fish, and squid. The penguins catch and swallow their prey underwater. The penguin's bones are rather solid compared to the bones of flight birds, thus meaning less energy is required to dive.