Cephalopod Eye

Cephalopod Eye

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cephalopods, as active marine predators, possess sensory organs specialized for use in aquatic conditions. They have a camera-type eye, which consists of a lens projecting an image onto a retina. Unlike the vertebrate camera eye, the cephalopods' form as invaginations of the body surface, and consequently they lack a cornea. Unlike the vertebrate eye, a cephalopod eye is focused through movement, much like the lens of a camera or telescope, rather than changing shape as the lens in the human eye does. The eye is approximately spherical, as is the lens, which is fully internal. The crystalins used in the lens appear to have developed independently from vertebrate crystalins, suggesting a homoplasious origin of the lensshow more

Product details

  • Paperback | 84 pages
  • 152 x 229 x 5mm | 136g
  • Dicho
  • United States
  • English
  • 6136781026
  • 9786136781020