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The Dall sheep, Ovis dalli, a mountain sheep of far northern North America, was the subject of one o
The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal
Coal Strip Mining in North Dakota
That politics was always a rough business is shown in this cartoon, which shows Lincoln, assisted by
North American Climates
Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet