Bison block the road in Yellowstone. They seem to be having some sort of important conversation there on the asphalt, don't you think?

We sat in this “jam” for at least 15 minutes before a few cars decided to ease around these animals. When cars began passing them (albeit very slowly), the bison decided they might as well give the road back to the four-wheeled beasts.

At right is a shot of more bison in the meadow beside the road. Lots of little ones were feeding and frolicking in the grass.