File:Dragonfly eye 3811.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Dragonfly_eye_3811.jpg(389 × 481 pixels, file size: 51 KB, MIME type: image/jpeg)

Structured data


Add a one-line explanation of what this file represents
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.
This licensing tag was added to this file as part of the GFDL licensing update.

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

m:Image:Dragonfly eye 3811.jpg

File history

Click on a date/time to view the file as it appeared at that time.

current13:00, 11 March 2005Thumbnail for version as of 13:00, 11 March 2005389 × 481 (51 KB)Shizhao (talk | contribs){{GFDL}}
  • You cannot overwrite this file.

File usage on other wikis

The following other wikis use this file:

View more global usage of this file.