In response to Captain Kirk's question regarding the mysterious creature known as a "cat", Spock replies:
"Quite a lovely animal, captain. I find myself strangely drawn to it."
What green-blooded Vulcan wouldn't find themselves drawn to such a lovely animal? Sadly, the cat turns out to be a shape-shifting alien bent on the USS Enterprise's destruction. But, that's neither here nor there....
SPOCK LOVES CATS!
Leonard Nimoy's brilliant portrayal of Star Trek's Mr. Spock spanned six decades and will go down as one of the greatest of TV and film! He will be missed now that he's made his "final voyage." But, it's only logical to assume that he would want all of the cats to "live long and prosper."