Get ready for chills and thrills when you travel to the icy Arctic and Antarctic. Pal around with a polar bear mom and her cuddly cubs north of Norway, tangle with a toothy tribe of walruses on an ice floe in the Arctic Ocean, and cruise with killer whales off the Canadian coast. Then migrate to the South Pole, where playful penguins, slippery seals, and hungry humpback whales swim in the slushy seas of Antarctica.