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Ask for help > a simple question
a simple question
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epit
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a simple question
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I know that everydog is coloured blind .True or not ?As I met preparing a worksheet for my pupils not for here I wanted to ask.Thanks |
11 Oct 2009
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cecio_13
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Hi Epit! I have just found this!
Dogs are not color blind - they see color, but their chromatic acuity is significantly less than humans �. This is for two reasons: (1) dogs have far fewer cone cells in their retina (cone cells are responsible for seeing color); and (2) dogs are dichromatic (they see only two primary colors - blue and yellow) whereas humans are trichromatic, meaning we see three primary colors - red, blue, and green.Humans have 7 times higher proportion of cone cells than dogs, meaning that when dogs do see colors, they are pale or faded. However dogs have a much higher concentration of rod cells, responsible for seeing black-and-white, and also much more sensitive in lower light conditions. For that reason, dogs have much better night vision than people.
Hugs! |
11 Oct 2009
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redcamarocruiser
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I have often wondered whether the claim that dogs are color blind is true. A student did a science experiment to test this hypothesis. He concluded that his dog is not totlall colorblind because his dog could differentiate between blue and yellow and in a control experiment red an blue. http://www.usc.edu/CSSF/History/2004/Projects/J1003.pdf is where I read about it.
http://wiki.answers.com/Q/Are_dogs_colorblind shares this opinion that dogs can see color, if more faded than humans. Also of the same opinion: http://answers.yahoo.com/question/index?qid=20090422141716AAhsIlk
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11 Oct 2009
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Mahalo
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Epit-
Whenever you or your class have quesions, go to ask.com! |
12 Oct 2009
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