A bull bison (Bison bison) performs a lip curl to smell for cows in estrus during the mid-Summer rut, National Bison Range

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A bull bison (Bos bison) performs a lip curl to smell for cows in estrus during the mid-Summer rut, National Bison Range, Montana

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Size: 6144px × 4080px
Photo credit: © Andrew Kandel / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: american, behavior, bison, bos, buffalo, bull, curl, flehmen, lip, male, mating, montana, national, range, rut