The Muskox are a puzzle of nature. They look like a throwback from ancient times. Their uniqueness is probably why they have adapted to survive in this most harsh climate. Here are a few adaptations that make them suitable to this biome: The Muskox's hooves are breaking ice so the oxen can drink water when most the water is frozen. They have thick fur, much like all Arctic animals, to keep them warm. Their eyes can see in bright lights or in the dark. Of course, their unique horns are great for warding off predators. Their under-hair is ten times more warm than Sheep because the fiber of their hair is super insulating.