Guess he has to deal with it every Bovidae and while he doesn't leave much ruminant for the cars passing by, it seems he's able to huff if they get too close.
And this is proof that your dog is treating you like her mother, as this behaviour originally comes from a puppy licking her mum's lips to get her to regurgitate her dinner.
Paul Olsen, a professor of Earth and environmental sciences at Columbia University, told NPR that while fossilized vomit, technically known as regurgitalite, isn't actually rare, this one is an " especially nice example."
As ruminants with multi-chambered stomachs, bison can extract more nutrients from grass and this may help explain why they survived when other grazers such as the wild horses did not.