Page:Eleven years in the Rocky Mountains and a life on the frontier.djvu/76

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WONDERFUL INSTINCT OF THE BEAVER.
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distance from the bank—for if the beaver can get on shore with the trap, he will cut off his foot to escape: secondly, that the float is of dry wood, for should it not be, the little animal will cut it off at a stroke, and swimming with the trap to the middle of the dam, be drowned by its weight. In the latter case, when the hunter visits his traps in the morning, he is under the necessity of plunging into the water and swimming out to dive for the missing trap, and his game. Should the morning be frosty and chill, as it very frequently is in the mountains, diving for traps is not the pleasantest exercise. In placing the bait, care must be taken to fix it just where the beaver in reaching it will spring the trap. If the bait-stick be placed high, the hind foot of the beaver will be caught: if low, his fore foot.

The manner in which the beavers make their dam, and construct their lodge, has long been reckoned among the wonders of the animal creation; and while some observers have claimed for the little creature more sagacity than it really possesses, its instinct is still sufficiently wonderful. It is certainly true that it knows how to keep the water of a stream to a certain level, by means of an obstruction; and that it cuts down trees for the purpose of backing up the water by a dam. It is not true, however, that it can always fell a tree in the direction required for this purpose. The timber about a beaver dam is felled in all directions; but as trees that grow near the water, generally lean towards it, the tree, when cut, takes the proper direction by gravitation alone. The beaver then proceeds to cut up the fallen timber into lengths of about three feet, and to convey them to the spot where the dam is to be situated, securing them in their places by means of mud and stones. The work is commenced when the water is low, and carried on as it rises, until it