Winter Bison Panorama

Rocky Mountain Arsenal National Wildlife Refuge, Colorado

 Temperatures well below zero suit bison just fine - they've evolved to handle the extreme cold and heat of the shortgrass prairie. The RMA herd has grown to around 50 animals and I count 33 stretched out in this image on a morning when the wind chill was -31F.
Bos bison

larger image here

* Because this is a long panorama, please contact me for special print pricing. Photo © copyright by Dave Showalter.