Tourists are not supposed to get out of their cars to photograph Yellowstone’s wildlife at close range. But some photographers do not follow such instructions, including this pair of tourists who have left the safety of their car to get a closer shot of a bison crossing the road in front of them. I made this image through the front window of our own car, which was stopped in traffic to allow the bison to pass. This couple has just finished photographing the bison and are rapidly retreating to their car. They were fortunate that this bison had other things in mind – such bison can weigh 2,000 pounds and can run at speeds up to 40 miles per hour. They stand within a few feet of the oncoming bison at this moment – a dangerous risk to take for a photograph.