In an environment that has increased ambient temperature, there
is less darkening of coat. Similarly, if there is an environment
with low ambient temperature, there is more fading of pigments,
with resulting in less darkening of the coat.
The formation of pigment in the hair material is
thermal dependent, which is to be taken as a significant factor
for the differences between the colors observed on body of this
Siamese cat. There are many variants in genotypes
of Siamese colors.
Another unique feature in newborns of this
Siamese cat is that during birth, no color differences
are perceived by any observer and hence, at birth, this species
may look pale to the observer. However, when the Siamese
species start growing, the ears and nose start revealing
pigmentation differences, when compared to the other regions of
the body that reveals oriental type.
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