The wolf equivalence to our fingerprint is two glands of
smell, one at the back and one at the rectum. The secrete from this two glands is
different for every wolf.Wolves also use smell for marking out borderlines and paths in
their territory. They mark with either urine, excrement or by digging in the ground. The
distance between two marks is normally 100m, but the distance is smaller near borderlines
to other wolves.
The eyesight is terrific and a good aid in hunting etc. The eyes are like almost all
predators pointed forward with a sight-field of nearly 180 degrees (Compared to many preys
that have a sight-field of about 300 degrees.)
The good hearing is used for hunting, communication etc.