World's largest Chinstrap Penguin colony
Several millions of Chinstrap penguins breed throughout the archipelago, together with smaller colonies of Adélie, Gentoo and Macaroni penguins. Zavodovski Island possibly has the largest Chinstrap Penguin colony in the world, with more than 1 million breeding pairs. The geothermally heated slopes of the islands form a warm and ice-free breeding place for the birds.
Antarctic Fur Seals and Southern Elephant Seals are also known to breed and haul out on several of the islands. There is also a nice variety of flora (mosses, lichens and Antarctic Hairgrass). In the seas surrounding the islands often whales are spotted.