10-25-2023, 02:25 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
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Octopuses are colorblind but use their uniquely shaped pupils to separate wavelengths. By adjusting the depth of their eyeballs, they can focus on any wavelength individually. That means if they want to see everything in red or any other color of the spectrum, they can. Just not all at once.
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