The vast forests and grasslands also include unique species of plants. Yellowstone Park is the largest and most famous megafauna location in the contiguous United States. Grizzly bears, wolves, and free-ranging herds of bison and elk live in this park. The Yellowstone Park bison herd is the oldest and largest public bison herd in the United States.
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Feb 07, 2010 · Peeing at night could cost the United States' economy billions In March, a team of scientists at the RAND corporation estimated that shuffling to the bathroom at least twice each night could be costing the United States economy billions of dollars. Those pee breaks, the report suggests, are responsible for $44.4 billion in lost profits each year.