According to the Temperance Society-produced vintage photographs, drunkenness has five stages.

An amateur photographer with a habit of driving around inside Yellowstone National Park in his spare time taking shots of wildlife last month encountered a grizzly bear pursuing with intent an injured bison.

The photographs were taken around 7 AM at the Fountain Flats area, located between the Madison Junction and Old Faithful inside the Park.

The unfortunate bison had blundered into one of Yellowstone Park’s hot springs and was badly injured. As events unfolded, the bison managed to outrun the bear, but it was subsequently concluded to be too badly burned to recover and was put down by Park rangers. It seems a pity that the bear lost the race.

KTVQ reports.

The photographs have gone viral, and have been published in many places, including Field & Stream.

Hat tip to Karen l. Myers.