This is one of the craziest videos I've ever seen. Ronan Donovan is a photographer for National Geographic. He also has some really good ideas. To get some incredible footage in Yellowstone, Ronan decided to drag the carcass of a bison into an open area and set a camera up in front of it. The result was definitely worth the struggle. Wolves, bald eagles, grizzlies, and coyotes all showed up to snack on the bison.

Watch the video below: