Wild animals do not recognize park borders. Two of Yellowstone’s iconic species, bison and elk, spill seasonally—and naturally—beyond park boundaries looking for food. One is welcome.

“Remember to always keep your distance — 25 yards from bison and elk; 100 yards from all other wildlife.” (Click here if video player does not appear above.) While commemorating National ...

Foggy conditions are being blamed after five bison were killed in a collision with two pickup trucks early Thursday morning ...