what does it mean when a cat has one blue eye and one green eye
Odd-eyed cat The odd-eyed coloring is caused when either the epistatic (dominant) white gene (which masks any other color genes and turns a cat completely white)[4] or the white spotting gene (which is the gene responsible for bicolor and tuxedo cats)[5] prevents melanin (pigment) granules from reaching one eye during development,[3] resulting in a cat with one blue eye and one green, yellow, or brown eye. The condition only rarely occurs in cats that lack both the dominant white and the white spotting gene.[4]
Blue moon Owing to the rarity of a blue moon, the term "blue moon" is used colloquially to mean a rare event, as in the phrase "once in a blue moon".[4][5]
Fox Foxes are small-to-medium-sized, omnivorous mammals belonging to several genera of the family Canidae. Foxes have a flattened skull, upright triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or brush).
Kangaroo There are four species that are commonly referred to as kangaroos: