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The Conversation USA

Seeing without eyes – the unexpected world of nonvisual photoreception

  • Written by Thomas Cronin, Professor of Biological Sciences, University of Maryland, Baltimore County
imageColor-changing cells in an Atlantic squid's skin contain light-sensitive pigments.Alexandra Kingston, CC BY-ND

We humans are uncommonly visual creatures. And those of us endowed with normal sight are used to thinking of our eyes as vital to how we experience the world.

Vision is an advanced form of photoreception – that is, light sensing. But...

Read more: Seeing without eyes – the unexpected world of nonvisual photoreception

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