A grizzly bear spotted by tourists in Alaska's Denali National Park was minding its own business, meandering down a hillside, when it suddenly began doing something you don't often see bears do.
The grizzly bear started rolling down the side of the hill, much to the delight of the amused tourists. David Pangborn of Duluth, Minnesota, zoomed in to get close-up video of the unexpected behavior.
The bear is first observed walking down the hillside and suddenly rolls over before falling onto its back and remaining motionless for a few seconds.
"He's playing dead now," one tourist opines.
Then the grizzly bear starts rolling down the hill, prompting laughter from the tourists
"That is hysterical," a tourist says.
"He's playing," another says.
"I've never seen a bear do this," the tour guide can be heard saying, reiterating later, "You guys are seeing something I've never seen before."
Neither have we ... until now.
More from GrindTV