The New York Times reported this week on the return of bison and other endangered wildlife to pristine land. The Native Americans from these midwest regions have maintained the grasslands, unplowed and natural – a rarity across the rest of the American landscape. Now the tribal land is being further restored by returning its native wildlife:
Explore the 5 Biomes: Grasslands
We’ve got this one covered. Or rather the bison do. Grasslands – flat plains covered in tall grass rather than large shrubs or trees – were created over 25 million years. They resulted from the mountains rising in North America and forests declining, and further expanded by the following ice age making prime, flat space