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CRAZY Structures Built by Animals

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From complex termite mounds … to elaborate tunnels, and amazing feats of engineering … here are 16 incredible structures built by animals Subscribe to Talltanic #6 Sociable Weaver Bird Nests While they may not be the biggest birds, they do build the largest bird nests of any species. Not only are the nests built to be permanent, but the structures can contain several generations at any one time. The birds seems to be experts at building their homes for energy efficiency as well … Inner rooms retain heat and are used at night, while outer rooms are cooler and...
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