"When the pups are away from their elders, this is when we see them being extra mischievous." ...

A playful Yellowstone wolf pup is giving weekend vibes after he was caught on camera making off with a grizzly bear warning sign—and turning the post into a chew toy. Wolves just wanna have fun.

Yellowstone National Park is home to 67 species of mammals, including coyotes, bison, and, of course, grizzly bears. The park's website is clear in warning readers that "all bears are potentially ...