The woodland caribou is neither so swift nor so astute in avoiding danger as the Virginia deer or the moose. It falls an easy prey to hunters and to wolves, and when not properly safeguarded is readily exterminated. This is shown by its complete disappearance from the Adirondacks, in northern New York, and by its threatened disappearance from the forests of Maine, Minnesota, and Idaho; in fact, the woodland caribou is in more imminent danger of complete and early extermination within the United States than any other game animal and can be saved only by stringent laws and careful guardianship. =BARREN GROUND CARIBOU= (=Rangifer arcticus= and its subspecies) (see illustration, page 422). The typical barren ground caribou is smaller and paler colored than the woodland species. Several geographic races have been distinguished, among which the most notable is the Peary caribou, the palest of all and the subject of the accompanying drawing. Like other members of the group, this species is a heavily built animal, with thick legs and large feet. The barren ground caribou is characteristic of the desolate Arctic barrens and tundras beyond the limit of trees, ranging to the northernmost limit of land beyond 83 degrees of latitude. When explorers first visited these northern wilds, including the treeless coastal belt from the Peninsula of Alaska to Bering Straits, they found these animals almost everywhere in extraordinary abundance. Over great areas of this territory straggling herds of caribou, sometimes numbering hundreds of thousands, drifted with the season from one feeding ground to another. The advent of white men with guns has resulted in their rapid decrease everywhere and in their extermination over great areas. In many of their old haunts the only trace of their former abundance is in well-marked trails winding by easy grades to the bare tops of the low mountains. They are still numerous on the Peninsula of Alaska and in much greater numbers in parts of the barren grounds of Canada. There, on the shores of Artillery Lake, during the summer of 1907 a small migrating herd of about 2,000 was seen. When alarmed these caribou often break into a clumsy gallop, which soon changes to a steady shambling trot, their characteristic gait, carrying them rapidly across country. In winter their tracks in the snow show that their feet, instead of being raised high at each step, like those of a Virginia or mule deer, drag through the snow like those of domestic cattle. Their large, broad-spreading hoofs, with sharp, cup-shaped edges, are admirably adapted to secure a firm footing in the yielding and hummocky surface of their haunts in summer and on the snow and ice in winter.