File:Pelecanoides georgicus (South Georgian diving-petrel) (8365384976).jpg

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Captions

Captions

South Georgian diving-petrel (Pelecanoides georgicus)

Summary

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Description

Pelecanoides georgicus Murphy & Harper, 1916 - South Georgian diving-petrel (mount, Field Museum of Natural History, Chicago, Illinois, USA).

Classification: Animalia, Chordata, Vertebrata, Aves, Procellariiformes, Pelecanoididae

Birds are small to large, warm-blooded, egg-laying, feathered, bipedal vertebrates capable of powered flight (although some are secondarily flightless). Many scientists characterize birds as dinosaurs, but this is consequence of the physical structure of evolutionary diagrams. Birds aren’t dinosaurs. They’re birds. The logic & rationale that some use to justify statements such as “birds are dinosaurs” is the same logic & rationale that results in saying “vertebrates are echinoderms”. Well, no one says the latter. No one should say the former, either.

However, birds are evolutionarily derived from theropod dinosaurs. Birds first appeared in the Triassic or Jurassic, depending on which avian paleontologist you ask. They inhabit a wide variety of terrestrial and surface marine environments, and exhibit considerable variation in behaviors and diets.
Date
Source Pelecanoides georgicus (South Georgian diving-petrel)
Author James St. John

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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/8365384976. It was reviewed on 5 March 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

5 March 2015

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