Where does he make his first home? Sometimes the young grizzly crowds into the territory adjoining his birthplace, but at other times he must wander far away to find territory not already occupied. In the past, when grizzlies were numerous, the increased population each year must have compelled readjustments and forced a reduction of the area claimed by each individual. But in these times, except perhaps in two or three National Parks, there are thousands of square miles here and there over the West without a grizzly on them. But the grizzly is fond of his home territory, and in it, except for occasional visits into the outside world, he spends his life. His Exclusive Territory 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.