File:Belugas.jpg
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Summary
| Description |
English: The absence of the dorsal fin is reflected in the genus name of the species - apterus is the Greek for "wingless". The evolutionary preference for a dorsal ridge in favor of a fin is believed by scientists to be adaptation to under-ice conditions, or possibly as a way of preserving heat. |
| Date | |
| Source | Beluga Whales |
| Author | Leon Mitchell from San Diego, USA |
Licensing
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This image was originally posted to Flickr by tigrecanela at https://www.flickr.com/photos/12168606@N00/480865138. It was reviewed on 20 March 2008 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:01, 20 March 2008 | | 1,200 × 898 (653 KB) | Serg!o | {{Information |Description= {{en|The absence of the dorsal fin is reflected in the genus name of the species - apterus is the Greek for "wingless". The evolutionary preference for a dorsal ridge in favor of a fin is believed by scientists to be adaptation |
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