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| Finding a piece of lichen that had fallen from the branch of a tree, Caren takes the opportunity to educate us about the slow growth rate of the organism. | CarenLichenLesson_9919.jpg |
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| Photographer: Durwood Edwards | Camera: NIKON D700 | Date: 7/14/09 2:03 PM | Resolution: 720 x 576 | ISO: 500 | Exp. Time: 1/100s | Aperture: 5.0 | Focal Length: 35.0mm | |
| Total images: 107 | Last update: 8/9/09 11:39 AM | Help | |