Rebecca Allbritton <[EMAIL PROTECTED]> wrote
>At 09:31 PM 4/17/00 +0100, Julian and Jackie wrote:
>
>
>>It is most obvious when standing, but they can do it on all fours. They
>>will move their head slowly to one side, then either quickly, or slowly,
>>move it back the other way.
>
>My siamese & balinese blue eyed cats all 1) squinted and walked with their
>heads lowered when outdoors in bright sunlight (they were all indoor cats),
>and 2) had trouble looking at objects close to them: their eyes would cross
>and uncross, and they would frown (wrinkled forhead) and squint. [siamese
>is a mutation at the albino locus in cats as well as in gerbils, but I've
>never seen a red eyed cat.]
>
>Rebecca...
Blue eyes in humans and cats are not caused by pigment, but by the
scattering of white light by small protein particles. The reason why
albino locus mutations in cats produce blue eyes is the same lack of
pigment that causes red eyes in rodent species.
COMPARATIVE GENETICS OF COAT COLOUR IN MAMMALS, Searle A G, Logos Press
Ltd, 1968,
--
Julian
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* Jackie and Julian *
* [EMAIL PROTECTED] *
* National Gerbil Society *
* http://www.gerbils.co.uk/ *
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