It is very dry climate, only 8 to 39 inches of rain per year. The soil in the grassland is deep black to light brown. There is a lot of organic matter in the soil. The soil is very wet in grassland regions. Grasslands have less than 1 tree per acre.
Common plants are grasses, forbs, cacti, and shrubs.
Animals are very abundant and diverse. Common animals are prairie dogs, gophers, and ground squirrels. Insects, however are the most common living thing.