Four subspecies of Canis lupus are found across northern and western Canada and in the region around the Great Lakes. Canis lupus lycaon, the Eastern Timber Wolf, resides in the south-eastern region of the Great Lakes. Canis lupus arctos, the Arctic Wolf, lives in the far north. Canis lupus nubilus, known as the Great Plains Wolf or Buffalo Wolf, lives in the south-central region just west of the Great Lakes. Canis lupus occidentalis, the Rocky Mountain or McKenzie Valley Wolf, has its home in the west as far north as Alaska.
Some experts believe that howling—that eerie hallmark of this unique species—is a key element of territory establishment, acting both as a warning to other packs and a call to gathering among pack members.
Specifications
No. 133912
Mintage 7500
Composition 99.99% pure silver
Finish proof
Weight (g) 31.39
Diameter (mm) 38
Edge serrated
Certificate serialized
Face value 20 dollars
Artist Pierre Leduc (reverse), Susanna Blunt (obverse)