Scallops’ eyes use millions of tiny square crystals to see

This area is for the discussion of what's new, what's on your mind, and general photographic topics. A place to meet, make comments on this site, and get the latest community news.

Moderators: Pau, rjlittlefield, ChrisR, Chris S.

rjlittlefield
Site Admin
Posts: 21261
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Scallops’ eyes use millions of tiny square crystals to see

Post by rjlittlefield »

So, here's a new type of eye for you: two retinas, front-ended by a focusing element that consists of an array of mirrors!

https://www.sciencenews.org/article/sca ... ystals-see
Magazine issue: Vol. 193, No. 1, January 20, 2018, p. 8

There’s stiff competition for the most elaborate eyeballs in the animal kingdom, but a mollusk that turns up on dinner plates might be a finalist.

Each of a scallop’s eyes — it has up to 200 of them, each about a millimeter in diameter — contains millions of perfectly square, flat crystals that build up into a mirrored mosaic, new research shows. And that shiny surface is curved in a way that lets a scallop focus light onto two different retinas.
The article continues with other fascinating details about the mirrors.

It's a short article, well worth the read.

--Rik

Post Reply Previous topicNext topic