How to See with Eyes Made of Rock by Susan Milius | Free Audiobook

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Title: How to See with Eyes Made of Rock
Author: Susan Milius
Narrator: Jamie Renell
Format: Unabridged
Length: 4 mins
Language: English
Release date: 12-15-15
Publisher: Science News
Genres: Science & Technology, Magazine & Radio

Summary:
Certain species of the crawling lumps of mollusk called chitons polka-dot their armor-plated backs with hundreds of tiny eyes. But mixing protection and vision can come at a price. The lenses are rocky nuggets formed mostly of aragonite, the same mineral that pearls and abalone shells are made of. New analyses of these eyes support previous evidence that they form rough images instead of just sensing overall lightness or darkness, says materials scientist Ling Li of Harvard University.

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