Giving my return to the plot I could stop to see these two large nests, hanging from a branch of the orange bush. They were full of wasps, which hovered over him, Obviously I did not make noise so they would not be disturbed, since this usually happens when we bother the hornet's nest. It is so impressive How such small insects can create their own house in a tree with the cattle manure .. Here I show two different wasps. Both in size and in shape! really not only humans we have art, also animals! I think we learn from animals ... !! 
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Nature surprises us every day, and every time we learn from it. 
I wonder: how long will it take to form this (wasp house) wasps?