This might be one of the creepiest animal sounds I've ever heard. I'll be honest, if I were camping in the woods, around a quiet campfire, this would really freak me out. I would convince myself that it was a Bigfoot.
If I had a nickel for every conspiracy theorist that has said bison are leaving Yellowstone National Park because the super-volcano is about to erupt, I'd be a rich man. Let's deal with this theory with a crazy thing called "facts".
In a battle between a blue bag and a huge Yellowstone bull elk, who do you think would win? If you said the elk, congratulate yourself because you are correct based on a brand new video that's just been shared from the park.