Simplify the following text for a Grade 14 native English-speaking person.
Original: The African Penguin ( Spheniscus demersus ) , also known as the Black-footed Penguin ( and formerly as the Jackass Penguin ) , is found on the south-western coast of Africa , living in colonies on 24 islands between Namibia and Algoa Bay , near Port Elizabeth , South Africa , with the largest colony on Dyer Island , near Kleinbaai .
Simplified: The African Penguin ( Spheniscus demersus ) , also known as the Black-footed Penguin , is found on the south-western coast of Africa , living in colonies on 24 islands between Namibia and Algoa Bay , near Port Elizabeth , South Africa .