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What animal has the widest viewing range in the electromagnetic spectrum?
Question
#92550. Asked by ebaben3. (Feb 19 08 7:50 AM)
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nealio302

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According to this website, butterflies do. But, in regards to a lecture I recently attended on the Electromagnetic Spectrum, cats have been said to have the largest viewing range of the spectrum.
http://landsat.gsfc.nasa.gov/education/compositor
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Baloo55th
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Some butterflies can see colours other butterflies can't. The Vanessid butterflies - Painted Lady, Red Admiral and so on - can see red that the Common (or Cabbage) White, for example, can't. You will find them on red flowers that the other butterflies ignore. (This has been tested by someone painting coloured lacquer filters on butterfy eyes - when the red was filtered out the Vanessids couldn't detect the red flowers, apparently.) As to cats, they seem to see things that aren't physically there to our senses, and will watch them with apparent interest. This can be rather disconcerting...
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