Biomes are often named for the vegetation found within them. Some familiar examples of biomes include tundra, desert, chaparral, and open ocean. A number of attempts have been made to classify the world's biomes. Some of the biomes described by Koeppen are described below. A tundra is a treeless region in a cold climate with a short growing season.
Most tundras receive little precipitation.
Still, their soil may be moist or wet because little evaporation occurs. Loss of water by seepage is also prevented because the soil is frozen. Very little vegetation grows and very few animals live in the coldest, most northern, high-arctic tundras. In North America, arctic tundras can support small numbers of plant-eating mammals, such as caribou and musk oxen, and even smaller numbers of their predators, such as wolves. The boreal coniferous forest, or taiga, is an extensive northern biome occurring in moist climates with cold winters.