Tense Standoff!

Witnessed a tense standoff between a Gray Wolf and a Bison this afternoon.  The weather was cool and rainy but that never seems to stop the wildlife from putting on a show. A bison calf had died in the first few weeks of its life.  This is usually an easy meal for wolves, the Bison in the photo had likely seen this calf fed on for several days and had enough.  This bison chased the wolf around preventing it from feeding on the remains of the carcass.  Every time the wolf would get the carcass in her mouth a Bison would come at her full speed till she eventually lost interest.  This went on for over a half hour before the Wolf left the area.