Isaiah 11:6 

The wolf also shall dwell with the lamb, and the leopard shall lie down with the kid; and the calf and the young lion and the fatling together; and a little child shall lead them

A vom Buffeltaler

AKA Gretta

Gretta with Emma's Easter lamb Marshmellow

No. this is not a supernatural encounter or prophecy being fulfilled.

It is over 100 year of breeding

Drahthaars were breed for their high intelligence and versatility.  It is not uncommon for Drahthaars to protect the family livestock with wolf like aggression.