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Project Noah Nature School
Trypoxylon politum
Old dauber pipes. You can see the holes where newly hatched insects bored their way out. Different soil types used. Stacked pipes, a little unusual. And on the right, a smart dauber realized she could save on materials if she used the side of an existing pipe as part of a wall in a new one.
Spotted on Oct 7, 2013
Submitted on Oct 12, 2013
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