Page 33 - Beavers: Skilful Dam Constructors
P. 33

build is very strong and it becomes bigger and stronger

             every day. As the barrier gets larger, the level of the
             water collected before it rises. So after several months,
             a dam pond is formed. But as the pond becomes

             enlarged, we must strengthen and repair the dam. As Mr.
             Beaver said, we fill in the spaces between the branches
             with mud and bushes. By the way, there is one more

             thing which is very important. Have you noticed the
             shape of our dam? It looks like an arch, doesn’t it?


                                                           Mr. Beaver
                                                           explains to Karim
                                                           how they carry the
                                                           logs and branches
                                                           into the water
                                                           (page left) and
                                                           then how Mrs.
                                                           Beaver sticks
                                                           them together.



























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