LessonToday

Three takeaways

• By 1902, poachers had cut Yellowstone's wild bison herd to about two dozen animals, down from as many as one thousand in 1872 (National Park Service).
• Before the mid-1800s, 30 to 60 million bison may have roamed North America, but market hunting and a U.S.
• Army campaign in the late 1800s nearly wiped them out.

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