Polar Explorations Season 1 Episode 12 Marine Mammals, from Whales to Walruses

The waters of the Arctic and Antarctica teem with a remarkable number of marine mammals. Get an overview of the mammalian wildlife that inhabits or migrates to polar waters, including white beluga whales, leopard seals, crabeater seals, and walruses. Examine the sophisticated social structure of orcas, also known as killer whales, and why it makes them such effective predators.