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| By courtesy of the American Museum of Natural History |
| Old Beaver is the master "lumberjack" of the whole animal world. He can fell a tree and make it fall toward the pond where he wishes to build his house and dam, thus saving himself unnecessary work. He leads the world in mechanical and engineering skill and mankind has much to learn from this canny old rodent. |
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| By courtesy of the American Museum of Natural History |
| Beaver babies begin gnawing sticks the size of a lead pencil before they are weaned. Thus at an early age they sharpen their teeth for the Battle of Life. |
