These degradations of function were artificially introduced by extraterrestrial incursion to manipulate the DNA of these animals, and then through the normal course of breeding by humans, the defects, which were dominant in their influence on heritability of the problems, were disseminated and became difficult to eliminate. This is yet another example of the depravity of the extraterrestrials visiting the earth, that they would turn something loving into a liability that suffers itself, from a health compromise. This was not the consequence of inbreeding, and that was an assumption applied by science, with the aid of mind control manipulation, to keep people complacent and simply accepting this turn of events as not only something natural, but done because of human selfishness wanting more of these delightful animals because of their beauty and personalities. It is par for the course that all things are blamed on human. And this creates a nice cover for the evil in the world that comes from the dark spirits and the Extraterrestrial Alliance, whose members are also corrupted by dark spirits to promote the dark doings of subjugation and torment of others, to fuel their desire for power and control.