Savanna
Though the dominant plant in savanna biomes is grass, they also have trees scattered throughout the area. These trees do not grow in clusters. The rainfall in savannas is concentrated into a rainy season followed by several months of dry weather. Temperatures in the savanna are warm year-round. This climate creates the savanna biome. Savannas are found in Africa, Australia, South America and India.
Prairie
Prairies are found in the middle of North America and extend from Canada south into the United States. These grasslands are characterized by tall grasses, some species can grow as high as 10 feet tall. Typical prairie grass species include big bluestem and Indian grass. There are also many flower species that grow in these prairies. Though some trees will grow in the prairie, they are few and far between. Prairie climates are colder in the winter and warmer in the summer, unlike a savanna climate.
Steppe
Steppes are dry and cold grasslands that are found on all of the continents except Antarctica and Australia. This ecosystem is normally found between desert and forest biomes. As with the other grassland biomes, grass is the predominant species, although the type of grass and the height to which it grows depend on how much rainfall the steppe receives. The tallest grasses in a steppe grow to about 4 1/2 feet, and the shortest grasses are about 1 1/2 feet tall.
Fauna
All of the grassland biomes support similar types of fauna. Not all of these species are found in all of the grassland biomes, but all biomes usually contain several species of grazing animals, both large and small, as well as a couple of predatory species. Typical grassland biome fauna include giraffes, lions, leopards, cheetah, cougars, buffalo, elk, deer and rabbit.