 They're from the coasts of South Africa and Namibia, and like many birds, are threatened by climate change and overfishing. So breeding programs at zoos and aquariums are helping boost their numbers. In fact, four chicks hatched at the New England Aquarium this spring and have been cared for by staff behind the scenes. Two of them, named Bunker and Althea, recently joined the African penguin colony out on display.