The Grizzly, Our Greatest Wild Animal

by Enos A. Mills

A mother grizzly and her year-and-a-half-old cub came shuffling along the shore of a little lake in the No-Summer Mountains. Where a brook flowed into the lake she stopped, looked at the cub, and possibly grunted something to him. She may have said, "Here, Johnny, is a territory not claimed by other bears; this is to be your domain." I watched him as she went ambling away alone. He stood looking at the ground for several seconds, then turned to see his mother in the distance, and finally surveyed his surroundings. Pushed off into the world to shift for himself, the cub walked up the mountain-side and disappeared in the woods.

I had seen this cub and his mother on the other side of the Medicine Bow Mountains, at least fifty miles away. When I saw her leaving the cub to make his way alone, I wanted to ask, “Is it common for a mother grizzly to take her children to the territory that is to be their home?” The selection of this domain may sometimes be made by the mother but most often, probably, it is made by the cubs.

But, selection of the home territory aside, the grizzly leads a solitary life; he lives apart from other bears, has his thought, his work, his recreation, and his play by himself. Alone he hunts for food, alone he wanders for adventure. Singly he fights his foes, and in solitude he dens up in winter. A possible explanation of this may lie in the fact that being alone is an advantage to an animal of his size and enormous food-requirements. Then, too, since the advent of the white man with the long-range rifle, it is an advantage to act singly. The grizzly’s solitary habit may be one which is an advantage in the perpetuation of the species. Only twice have I known of father, mother, and cubs being seen together, and I have never heard of their denning together.

A grizzly has his own home territory. He claims the exclusive use of certain lands. In only one instance have I known two companion grizzlies to occupy the same region permanently. These two were often seen eating, traveling, and resting near each other. Though the grizzly wanders off the home territory for an occasional visit, in it through the seasons and through the years he makes his living; he defends it against invaders, and in it he commonly dies.

Most wild creatures have their home territories, areas which they claim the right to use to the exclusion of others of the same species. The bear is likely to hold more territory than any other kind of life; and he will dominate in the territory all kinds of life that may temporarily conflict with his use of it. Most birds and beasts use their large or tiny bit of earth in pairs, flocks, herds, or colonies. The grizzly uses his alone. His domain may be in part the claimed territory of other species; lions, beavers, wolves, eagles, and other life may use it.

The grizzly bear is the aristocrat of the wilds. He is lordly and reserved. He will meet a bighorn sheep or other wild animal, and, though aware of its presence, pay no apparent attention to it. If near another bear, either a black or a grizzly, while appearing to be disinterested, or pretending not to have seen him, he is in fact watching the other’s movements. A black bear avoids him. Sometimes two grizzlies who have been feeding near each other deliberately meet, or come face to face. Each, with admirable acting, feigns intense surprise that the other is there. They bristle up, exchange a few unfriendly roars and growls, make a threatening move or two, and then go on. Sometimes they pass as though unconscious of each other’s presence.

A network of trails extends over the grizzly’s mountain home. These reach food-supply centres, lookout and resting stations, swimming-holes, and other places often visited. Generally when going anywhere the grizzly follows a trail; if pursued, he is most certain to do so. Many of these trails are dim, but others are deeply worn. He may sometimes make a new trail, but in general he follows the old ones which have been used by generations of bears. His domain may be crossed by other wild-life trails, which he may or may not use.

Topography, mountain barriers, streams, or other natural boundary-lines in part determine the form of the grizzly’s home territory. The size is determined by the food-supply, by the bear population of the region, and by individual prowess. A bear of exceptional prowess may hold an empire.

The territory dominated by old “Timberline” had an area of about eighty square miles. The western boundary-line followed the rim of the Continental Divide for nearly fifteen miles. Meeker Ridge and Cony Creek were other boundary-lines, while at the north stood Chief’s Head Mountain and Long’s Peak. Toward the south the territory narrowed and was not more than two miles across; in the centre it must have been nearly ten miles wide. An extensive area lay above the timber-line. There were forests primeval, a number of cañons and streams, numerous small lakes and beaver ponds. In this varied and extensive region old "Timberline" had all the necessities of life and many of the luxuries of beardom.

The claw-marks and the tooth-marks which grizzlies and some other animals place on trees are often interpreted as being “No Trespass” signs, indications of boundary-lines, survey marks, or the seal of ownership of the landlord. If these marks are extremely high, they are supposed to inspire respect for the one occupying the region, or to cause terror to the invader, unless he be large enough to reach higher. But I question any such significance attached to these marks. Ofttimes the bear leaves these marks in the centre of his home range, sometimes within the home territory of a lion or a big-horn. While the idea of its being a mark of ownership is a most artistic and entertaining one, it does not appear to have any natural-history value.