<p><br> With their large, sharp horns, bison are formidable foes. During mating season, bulls fight for the right to breed with harems of cows, but rarely duel to the death.</p>

Close-Up of a Bison


With their large, sharp horns, bison are formidable foes. During mating season, bulls fight for the right to breed with harems of cows, but rarely duel to the death.

Photograph by Sam Abell

Bison

See bison pictures in this photo gallery from National Geographic.

Published November 13, 2009

Read This Next

10 national parks that have the best fall foliage
U.S. nuclear testing's devastating legacy lingers 30 years later
An astonishing—and accidental—Ice Age cave discovery
The first Black Marines tell their stories—before it's too late

Go Further

Animals

Environment

History & Culture

Science

Travel

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

Read

How viruses shape our world

Read

The era of greyhound racing in the U.S. is coming to an end

Read

See how people have imagined life on Mars through history

Read
  • Magazine

See how NASA’s new Mars rover will explore the red planet

Explore

Why are people so dang obsessed with Mars?

Read

How viruses shape our world

Read

The era of greyhound racing in the U.S. is coming to an end

Read

See how people have imagined life on Mars through history

Read
  • Magazine

See how NASA’s new Mars rover will explore the red planet

Explore

Why are people so dang obsessed with Mars?

Read

How viruses shape our world

Read

The era of greyhound racing in the U.S. is coming to an end

Read

See how people have imagined life on Mars through history

Read
  • Magazine

See how NASA’s new Mars rover will explore the red planet

Explore
See More