The Tundra Biome is located between 60-70 degrees north latitude and receives less than 25cm of annual precipitation, with summer temperatures ranging from 3-12 degrees C. It has a layer of permanent permafrost below ground and 24 hours of daylight in summer. Plants like short grasses, lichens and mosses have adapted to the short growing season and inability to penetrate the permafrost with deep roots, while animals such as arctic foxes, hares, owls and caribou have adapted to the harsh climate by growing slowly, reproducing less frequently to conserve energy, and migrating in winter.