Arctic hare

The Arctic hare, Lepus arcticus, is a hare adapted to life on the Arctic tundra and in other icy biomes. Short ears and limbs, a small nose, a thick coat and body fat amounting to close to 20 percent of its body help it survive extreme cold, and it usually digs holes in the ground or under the snow to keep warm and to sleep. Adults measure about 43 to 70 centimetres in length, not counting the tail, and typically weigh 2.5 to 5.5 kilograms. It is a herbivore, specifically a folivore, that feeds mainly on woody plants such as arctic willow, with a more varied diet in summer, and it eats snow to get water. Arctic hares are usually found alone but can huddle in groups of dozens, and they can run at up to 60 kilometres per hour.