Antarctica is the most harsh place on Earth.
Antarctic South Pole: Has No terrestrial mammals. No plants or trees.
Arctic North Pole: The animals include the reindeer, polar bear, Arctic fox, narwhal, walrus, seal, ox, moose, orca, and snowy owl. The Alaskan malamute is a powerful sled dog from Alaska. This small, white fox lives farther north than any other land animal. This white hare lives in the Arctic and has huge hindfeet. Approximately 1,700 species of plants live on the Arctic tundra, including flowering plants, dwarf shrubs, herbs, grasses, mosses, and lichens. The tundra is characterized by permafrost, a layer of soil and partially decomposed organic matter that is frozen year-round.