The Patagonian Sea, Mar Patagonico in Spanish, is an important habitat for mammals, fish and birds. This stretch of the South Atlantic from Uruguay to Cape Horn is home 1/3 of the world's marine mammal species, 83 species of sea birds, 900 species of mollusks and 5 out of 7 known sea turtle species. Millions of Magellanic penguins breed on its coastal and island rookeries. Southern right whales, Argentine squid, southern sea lions, giant petrels, southern elephant seals and black-browed albatross all live in the Patagonian Sea.