The wolves are also very abundant, and are of two species.  First, the small wolf or burrowing dog of the prairies, which are found in almost all the open plains.  It is of an intermediate size between the fox and dog, very delicately formed, fleet and active.  The ears are large, erect, and pointed, the head long and pointed, like that of the fox; the tail long and bushy; the hair and fur of a pale reddish brown colour, though much coarser than that of the fox; the eye of a deep sea-green colour, small and piercing; the talons rather longer than those of the wolf of the Atlantic states, which animal as far as we can perceive is not to be found on this side of the river Platte.  These wolves usually associate in bands of ten or twelve, and are rarely if ever seen alone, not being able singly to attack a deer or antelope.  They live and rear their young in burrows, which they fix near some pass or spot much frequented by game, and sally out in a body against any animal which they think they can overpower, but on the slightest alarm retreat to their burrows making a noise exactly like that of a small dog.

The second species is lower, shorter in the legs and thicker than the Atlantic wolf; their colour, which is not affected by the seasons, is of every variety of shade, from a gray or blackish brown to a cream coloured white.  They do not burrow, nor do they bark, but howl, and they frequent the woods and plains, and skulk along the skirts of the buffaloe herds, in order to attack the weary or wounded.

Captain Clarke and one of the hunters met this evening the largest brown bear we have seen.  As they fired he did not attempt to attack, but fled with a most tremendous roar, and such was its extraordinary tenacity of life, that although he had five balls passed through his lungs and five other wounds, he swam more than half across the river to a sandbar, and survived twenty minutes.  He weighed between five and six hundred pounds at least, and measured eight feet seven inches and a half from the nose to the extremity of the hind feet, five feet ten inches and half round the breast, three feet eleven inches round the neck, one foot eleven inches round the middle of the foreleg, and his talons, five on each foot, were four inches and three eighths in length.  It differs from the common black bear in having its talons much longer and more blunt; its tail shorter; its hair of a reddish or bay brown, longer, finer, and more abundant; his liver, lungs, and heart, much larger even in proportion to his size, the heart particularly being equal to that of a large ox; his maw ten times larger; his testicles pendant from the belly and in separate pouches four inches apart:  besides fish and flesh he feeds on roots, and every kind of wild fruit.

The antelope are now lean and with young, so that they may readily be caught at this season, as they cross the river from S.W. to N.E.