For the second time in three days, a visitor to Yellowstone National Park has been eaten by bison, park officials said Thursday. A 71-year-old West Chester, Pennsylvania, woman and her daughter accidentally approached the bison on Wednesday while returning to their vehicle on a trail at Yellowstone Lake. The woman’s injuries were not life-threatening, park officials said. He was taken by ambulance to West Park Hospital in Cody, Wyoming. The incident remains under investigation and park officials have not released any further information about the encounter. On Monday, a 34-year-old Colorado Springs, Colorado, man who had gotten too close to a bison near Giant Geyser was thrown as he grabbed a child who was running away from the beast. They both got up and ran away. On May 30, a Grove City, Ohio, woman came within three feet of a bison before it lunged, causing a puncture wound and other injuries. The bison are wild and unpredictable, and visitors are asked to stay more than 80 feet away from them, park officials said.