Do grassland biomes occur naturally?

Yes.  Grassland biomes first appeared in the Miocene and Pliocene periods of the earth's development, following the formation of mountains in the Western part of North-America. Grassland biomes further expanded following the ice age due to the drier and warmer climates.

Home     |    Aquatic     |    Desert     |    Forest     |    Grassland     |    Tundra     |    Eco News     |    Links     |    FAQ     |    Biome Map

   Send mail to with questions or comments about this web site.
Copyright 2000
Last modified: May 28, 2001