By: William E. Schlosser, Ph.D.
Moose (Alces alces) originated as a species in Asia as evidenced by fossil records in the Miocene Era (DuTemple, 2001). When originally filling their niche, they came into the record at about the size of today’s house cat! They did not have antlers, they had tusks. Obviously the moose-filling niche witnessed this ungulate enlarging in size and forming antlers from the hairs on its head. Those tusks are still there, much shorter, today we call them Ivories on the upper jaw. All elk species (Cervus canadensis) have them too, but those tusks are the size of the surrounding molars.
Look for Alces species around the world, but you will find them in the northern hemisphere and see seven subspecies, or varieties, each fitting in the Alces alces genesis-species (DuTemple, 2001). This ungulate is in the first stage of speciation, where parapatric speciation has facilitated their genetic tour (Schlosser, 2021). Shiras moose bulls are the smallest variety of moose in North America, standing only at about 6.0 feet (1.8 meters) tall at the shoulders. They weigh up to 1,200 pounds (540 kg). Their demur size is an adaptation to the warmer climate of this region, as compared to others in this cadre living in Alaska, Yukon, or the northeastern reaches of this continent.
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