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Dragonfly eye 3811.jpg

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Dragonfly with compound eyes. Author: David L. Green

A compound eye is a visual organ found in certain arthropods. The compound eye consists of between 12 and 1,000 ommatidia, little dark/bright sensors. The image perceived by the arthropod is "recalculated" from the numerous ommatidia which point in slightly different directions. In contrast to other eye types, there is no central lens or retina. Though the resulting image is poor in resolution, it can detect quick movements and, in some cases, the polarization of light. Dragonflies have about 30,000 facets to their compound eyes, giving them nearly a 360° field of vision. Photo credit: David L. Green

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This page uses content from the Wikimedia Commons. The original content was at File:Dragonfly eye 3811.jpg. The list of authors can be seen in the page history. As with this Psychology Wiki wiki, that portion of the content of Wikimedia Commons is available under the GNU Free Documentation License.

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current12:08, November 4, 2007Thumbnail for version as of 12:08, November 4, 2007389 × 481 (50 KB)PhloxBot (Talk | contribs){{GFDL}} Dragonfly with compound eyes. Author: David L. Green A compound eye is a visual organ found in certain arthropods. The compound eye consists of between 12 and 1,000 ommatidia, little dark/bright sensors. The image perceived by the arthr

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