The Antarctic krill (Euphausia superba) is a species of krill found in the Antarctic waters of the Southern Ocean. Krill are bioluminescent animals. They are an important food source for whales, seals and other Antarctic animals.

The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. It is the largest animal that ever lived on Earth.

The Emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all penguin species. It can be 3 to 4 ft tall and weigh 65-90 lb.

The humpback whale (Megaptera novaeangliae) is a marine mammal belonging to the baleen whale suborder. Its head constitutes up to one-third of its total body length.

The Orca or Killer whale (Orcinus orca) is the largest species of the oceanic dolphin family. Despite its name, the killer whale is actually not a whale.

The Sperm whale (Physeter catodon) is the largest of the toothed whales. Its name comes from the milky-white substance spermaceti found in its head.

The squid is a marine cephalopod of the order Teuthida. The squid can range in size from the small Brachioteuthis (0.49 feet long) to the enormous Mesonychoteuthis (13 feet long).

The Weddell seal (Leptonychotes weddellii) is a large marine mammal that belongs to the scientific order Pinnipedia and lives in Antarctica.