Biomes are defined by their unique vegetation and animal life, and the savanna is a type ... makes savannas perfect areas for grass and brush fires during their dry seasons. Grasslands are located ...

while African grasslands are savannas. What they all have in common are grasses, their naturally dominant vegetation. Grasslands are found where there is not enough regular rainfall to support the ...

(Artist credit: Corbin Rainbolt) An international team of scientists has documented the earliest evidence for local abundance in eastern Africa of the types of grasses that now dominate grassland and ...

Other types of grassland grasses include a much taller type called big bluestem, which grows with very deep roots in the wetter parts of North America. In the 1930s settlers ploughed the big ...