"Flirtation," Woman Feeding Bear at Yellowstone National Park, Wyoming, circa 1917

Although Yellowstone had been designated a national park to protect its geothermal features and natural wonders, the park bears quickly became one of its primary attractions. Overzealous tourists took to such reckless behavior as feeding them out of their hands. Personal injuries and damage to human property finally led to an intensive bear management program in 1970.