Colour-Blind Animals
Many animals are colour blind, especially those who sleep in the day-time, but dogs, horses and cows are lacking in colour vision, although they sleep at night. The explanation is that these animals were originally nocturnal in habit, and while they have changed their mode of life they will remain colour blind. Whether colour appears the same to animals as it does to men, no one can say, and, as colour is largely in the brain action, it is possible that the brapi of a bird or animal functions differently from that of man.
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https://paperspast.natlib.govt.nz/newspapers/BPB19490121.2.41
Bibliographic details
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Bay of Plenty Beacon, Volume 13, Issue 44, 21 January 1949, Page 6
Word count
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96Colour-Blind Animals Bay of Plenty Beacon, Volume 13, Issue 44, 21 January 1949, Page 6
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