A frosty set of horns

A VERY close up look at the bison in the lower pic

This bison is in no hurry...and headed straight for our van

YELLOWSTONE NP, WY - - You are almost guaranteed to see at least one  bison (buffalo) or even many in Yellowstone.  Although not usually this close.  They wander where they want.  You don't challenge a hairy ungulate like this.  Why clomp along the roadway??  It's a lot easier than crunching your own path.  And, I suspect, they like their photo taken.