MadSci Network: General Biology

Re: how do animals see color??

Date: Tue Apr 9 13:41:17 2002
Posted By: Aydin Orstan, Staff, Office of Food Additive Safety, Food and Drug Administration
Area of science: General Biology
ID: 1017869219.Gb

Dear Imad,
Human eyes are not fundamentally different than the eyes of other 
vertebrate animals, simply because humans are vertebrate animals. All 
vertebrates have two main types of photoreceptors in their retinas: rod 
cells and cone cells. The differences in the light and color sensitivities 
of the eyes of different animals are partly due to the differences in the 
numbers of these photoreceptors in their eyes.

Aydin Orstan

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