A mantis shrimp wearing sun‐glasses
| Autor: | Daniela Donna, H. Schiff, Bruno Emilio Dore |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Total internal reflection
genetic structures biology business.industry Thin layer Adaptation (eye) Slight change Anatomy biology.organism_classification Ray eye diseases Mantis shrimp Optics medicine.anatomical_structure Cornea medicine Animal Science and Zoology sense organs Lysiosquillina maculata business |
| Zdroj: | Italian Journal of Zoology. 69:205-214 |
| ISSN: | 1748-5851 1125-0003 |
| DOI: | 10.1080/11250000209356461 |
| Popis: | Lysiosquillina maculata and L. sulcata have an exceptional mechanism, never observed in any other eye, for adaptation to the extreme light condition in their habitat. The eyes of L. maculata and L. sulcata are similar to, and here compared with those of other stomatopods. But a peculiar, complex system of muscles and veils surrounds the cones. Tight linkages attach this system to the cones and wedges, presumably adapting the eye (or different regions of the eye) to the intensities and angles of incident light. The muscles are also attached to a unique system of sunglasses. Viewing the frontal part of the living eye within a small solid angle, a large part appears black but, with a slight change in the viewing direction, it becomes white, i.e., totally reflecting the light. Corresponding to the reflecting part of the eye, the cornea thickens with two additional layers with varying stratification of alternating refractive indices. In this part, a thin layer of a particular tissue is inserted into t... |
| Databáze: | OpenAIRE |
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