File:Chelonia mydas (green sea turtle) (San Salvador Island, Bahamas) 6 (15561499144).jpg
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[edit]DescriptionChelonia mydas (green sea turtle) (San Salvador Island, Bahamas) 6 (15561499144).jpg |
Chelonia mydas (Linnaeus, 1758) - green sea turtle swimming over a seagrass bed. Classification: Animalia, Chordata, Vertebrata, Reptilia, Anapsida, Testudines, Cheloniidae Locality: west of North Point Peninsula, eastern Graham's Harbour, northeastern San Salvador Island, eastern Bahamas The turtles & tortoises (chelonians) are an ancient group of reptiles that have a Triassic to Holocene stratigraphic record. Turtles are most easily recognized by their shell - some forms can retract the head & limbs into the shell when threatened, while other species cannot. Their overall body plan has changed very little since the Triassic - a great example of conservative evolution. Chelonians occur in terrestrial, freshwater, brackish-water, and marine settings. |
Date | |
Source | Chelonia mydas (green sea turtle) (San Salvador Island, Bahamas) 6 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15561499144. It was reviewed on 3 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
3 May 2015
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current | 21:01, 3 May 2015 | 2,300 × 1,684 (1.31 MB) | Natuur12 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/400 sec (0.0025) |
F-number | f/3.2 |
ISO speed rating | 80 |
Date and time of data generation | 10:24, 18 June 2012 |
Lens focal length | 8.295 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 07:59, 3 January 2015 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 10:24, 18 June 2012 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 8.65625 |
APEX aperture | 3.34375 |
APEX exposure bias | 0 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Supported Flashpix version | 1 |
Image width | 2,300 px |
Image height | 1,684 px |
Date metadata was last modified | 02:59, 3 January 2015 |
IIM version | 2 |