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Searched for: LC Classification is Science -- Zoology -- Chordates. Vertebrates -- Birds -- Evolution
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Hosted by the U.S. Geological Survey Northern Prairie Wildlife Research Center, this site is an online publication from the U.S. Fish and Wildlife Service on the Migration of Birds. This publication provides an...
Archaeopteryx is considered by many to be the first bird, being about 150 million years of age. It is actually intermediate between the birds that we see flying around in our backyards and the predatory dinosaurs like...
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