The document discusses grasslands and the animals that inhabit them. Specifically, it mentions that grasslands are large, open areas found in temperate regions like the pampas of Argentina and the steppes of Eurasia. These areas support many grazing animals including zebras, bison, elephants, ferrets, hyenas, giraffes, prairie chickens, lions, ostriches, prairie dogs, warthogs, pronghorns, and sousliks.