Catspride, I was thinking about a reason for Van cats being about to extinct in TR & came up with an idea.
Since, in Turkey Van cats are expected/known to be completely white & with either one or both eyes blue, & since the white fur color & blue eye color genes are linked, causing the higher incidence of deafness in cats with these characteristics, it could be possible that Van cats by having these characteristics didn't/don't fit into their environment well by themselves. "Survival of the Fittest" => There is no advantage of being deaf (in either one or both ears), thus the ones who are deaf aren't selected by nature. So new hybridized members which aren't completely white & don't have blue eyes, are favored in the natural selection process..
This is what I came up with before I go to sleep
I wonder what your ideas are...
Since, in Turkey Van cats are expected/known to be completely white & with either one or both eyes blue, & since the white fur color & blue eye color genes are linked, causing the higher incidence of deafness in cats with these characteristics, it could be possible that Van cats by having these characteristics didn't/don't fit into their environment well by themselves. "Survival of the Fittest" => There is no advantage of being deaf (in either one or both ears), thus the ones who are deaf aren't selected by nature. So new hybridized members which aren't completely white & don't have blue eyes, are favored in the natural selection process..
This is what I came up with before I go to sleep