File:Ardea herodias (great blue heron) (Grand Lake, Celina, Ohio, USA) 1.jpg
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[edit]DescriptionArdea herodias (great blue heron) (Grand Lake, Celina, Ohio, USA) 1.jpg |
English: Ardea herodias Linnaeus, 1758 - great blue heron in Ohio, USA. (photo by Mary Ellen St. John)
Notice the chestnut brown-colored feathers at the top of the legs and elbow. Classification: Animalia, Chordata, Vertebrata, Aves, Ciconiiformes, Ardeidae Locality: shoreline of Grand Lake, Celina, northwestern Ohio, USA 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 | https://www.flickr.com/photos/47445767@N05/8292525490/ |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/8292525490. It was reviewed on 31 October 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
31 October 2020
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current | 00:44, 31 October 2020 | 689 × 841 (259 KB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/8292525490/ with UploadWizard |
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