how people, plants, and animals live in the world's toughest places
From the dense rainforests of the Amazon to the chill of the snowy Arctic, come on an intrepid adventure to the world's most extreme places: Arctic Circle, North American forests, the depths of the ocean, Amazon Rainforest, Pacific desert island, the Alps, Arabian Desert, African savannah, the Himalayas, Australian outback, Antarctica, outer space.
