Antarctica is a continent covered 98% in ice that can be over a mile thick. The ice sheets slowly flow off the continent and form ice shelves at the coast, where large icebergs frequently break off. Antarctica has the coldest, driest, windiest climate on the planet with temperatures below -120 degrees Fahrenheit. While tundra plants and a few insects survive in ice-free areas, penguins, seals and whales are the main animals found in Antarctica's icy waters.