Herd of buffalo grazing by river
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For bison, summer is always a great time to put on a few extra pounds before winter comes—but even when looking to beef up, bison still order the salad. Grazers of grass and other wild brush, these great American ungulates are also ruminants: Their specialized digestive systems process and metabolize food extremely slowly, squeezing as many calories as possible out of a few mouthfuls of grass. Every little bite helps for this lumbering, hungry herd—there's a long Yellowstone winter ahead of them.
濒临消失的天堂
无与伦比的天堂之境
地势极低的湖泊
大海、沙滩和日落
没那么烂
水上漂？
沙丘与泻湖交汇之地
驶过日落时分
