A bison calf grazes next to its mother in a meadow along the Yellowstone River in Yellowstone National Park, Tuesday, May 31, 2005. (Kevin Moloney for the New York Times)

A bison calf grazes next to its mother in a meadow along the Yellowstone River in Yellowstone National Park, Tuesday, May 31, 2005. (Kevin Moloney for the New York Times)

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Copyright: (c) Kevin Moloney, 2005
Image Size: 3000x1993 / 839.2KB; national park Yellowstone wildlife landscape environment travel vacation bison buffalo river animal herd
Contained in galleries: Wyoming

A bison calf grazes next to its mother in a meadow along the Yellowstone River in Yellowstone National Park, Tuesday, May 31, 2005. (Kevin Moloney for the New York Times)