The taiga is the largest terrestrial biome in the world, stretching across Eurasia and North America just below the tundra. It is characterized by long, cold winters and short, warm summers and is dominated by needleleaf trees like spruce and fir. Animals that live in the taiga include predators like lynx as well as prey like snowshoe hares. The taiga soil is thin and lacks nutrients due to the slow decomposition in the cold climate.