Penguins are flightless, aquatic birds, which live in the southern oceans in climates as varied as Antarctica and the Galapagos Islands on the equator. There are seventeen species in all but the African Penguin is the only one to inhabit the African continent and its inshore islands. It used to be known as the Jackass Penguin, on account of the braying sounds which it makes on land, but the name African Penguin has now been adopted to distinguish it from the Jackass Penguin found in South America, which is slightly different in appearance and behaviour.