Grasslands occur on all of the continents. They collectively constitute the largest ecosystem in the world, making up 40.5% of the terrestrial land area, excluding Greenland and Antarctica. Grasslands are not entirely natural because they have formed and developed under natural and anthropogenic pressures.
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Prairie Protector, a computer game conceived by University of Nebraska–Lincoln faculty and developed by Husker undergrads from the School of Computing, Department of Biological Systems Engineering and Hixson-Lied College of Fine and Performing Arts. The game’s simple 2D graphics and gameplay mechanics belie a grander vision: spreading the word about an invader that is endangering native plant and animal species, the livelihoods of ranchers, even the financial security of Nebraska’s public schools.