Surviving winter in Yellowstone country is no joke, but Wyoming’s bison are built for it, with thick hair, layers of fat and their own internal heating system.

Of course, there’s still no guarantee that every one of the burly bovines will make it. Counting winter-killed bison and elk carcasses used to be a full-time job in Yellowstone National Park.

And winterkilled bison carcasses are a vital food source for grizzlies when they emerge from their hibernation dens in the spring.

Even so, bison are better than most other critters at surviving whatever Wyoming winters can throw at them.

A photo that the National Park Service recently posted on social media of a snow-and-frost-caked bison in Yellowstone garnered some sympathy from some viewers for the supposedly miserable creature.

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