Nows and Thens in the Bighorn Sheep World

by Steve Reiss (Dalmdad Landscape Photography - www.dalmdad.com and https://www.facebook.com/Dalmdad.)

The instinct of the members of the bighorn sheep herd is pretty consistent. 

Whether the herd is crossing the road in 1956:

Or the herd is crossing the road in 2014:

Or "Old Eighty" is looking down from her perch in 1956 (note broken horn):

Or, an anonymous queen of the desert looking for her king to mess around with:

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Vintage photos from Mountain Sheep: A Study in Behavior and Evolution (V. Geist 1971).