Does a beaver wear out his teeth?
Animals do not have the tooth trouble we have. They do not feast on the sweets and the soft drinks that cause our cavities. Instead, they bite, chew, chomp and gnaw tough foods to keep their teeth healthy. If mr. Beaver gave up gnawing, he soon would have very serious tooth troubles. The beaver is a busy woodsman. He works with another beaver to cut down trees. In l5 minutes this pair of beavers can cut through a woody trunk that is 4 inches thick. Then the lumber is cut into logs and used to make clever dams and canals that keep the streams and ponds from draining dry. Twigs and branches are cut to build a wonderful beaver house under the water. More twigs are cut and saved for winter food. When all this work is done it is time to start repairs. A busy beaver’s chores are never done. A human woodsman uses axes and saws to chop down trees and cut his lumber. But the beaver has no ax or saw. A chisel is a sturdy tool with sloping sides and a straight, sharp cutting edge. Mr. Beaver does
