Rock hopper galapagos and emperor are the other names of which bird?

The rock hopper, galapagos, and emperor are all names for the penguin. Penguins are flightless birds that live in the Southern Hemisphere, and are known for their black and white coloration. They are social animals and live in colonies, which can range in size from a few dozen individuals to hundreds of thousands. Penguins are skilled swimmers and divers, and feed on fish, squid, and krill.