Why Did a Bison Attack Tourist at Yellowstone National Park?

It's not wise to approach the large animal, which is unpredictable and has a fear of being crowded, an expert says.

An American bison attacked a man in Wyoming's Yellowstone National Park on Tuesday, the second such incident in a month and a reminder that the large, territorial animals are unpredictable, experts say.

The 62-year-old Australian man was taking pictures when he came within a few feet of the bison, which was lying on the grass near Old Faithful Lodge.

The animal got up and charged, tossing him in the air several times and causing serious but not non-life threatening injuries, according to a Yellowstone National Park press release.

In May, a 16-year-old Taiwanese girl was gored—and survived—while posing for a picture with a bison near Yellowstone's Old Faithful geyser.

"Bison are unpredictable, wild animals that do not like their space

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