Fossilized Eye Of 300 Million-Year-Old Fish Contains Rods And Cones Suggesting Color Vision

December 24, 2014 10:54 AM

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Fossilized Eye Of 300 Million-Year-Old Fish Contains Rods And Cones Suggesting Color Vision

Scientists have discovered a fossilized fish with its well-preserved eyeball containing rods and cones that are visible under a microscope. The discovery of the 300 million-year-old fish eye helped scientists determine that the ancient fish likely possessed color vision.

According to scientists, this is the first time that rods and cones -- also called photoreceptor cells -- have been discovered in a fossil vertebrate eye. Rods and cones are found in the retina of the human eye. The rods -- some 120 million -- are more sensitive than the cones, but are not sensitive...

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