The document discusses several animals and plants that live in the Arctic tundra environment, including Arctic moss, Arctic willow, Arctic fox, Arctic wolf, snowy owl, lemmings, insects, musk ox, and killer whale. Arctic moss grows slowly in the cold tundra and lacks wood stems, while Arctic willow is a food source for Arctic hare. Arctic fox and killer whales have adapted thick fur and ability to walk on ice to survive the freezing temperatures.