No offense, but that sounds like complete conjecture to me. Unless something's been officially said about something like that, in which case, I'll promptly STFU. Otherwise, complete nonsense.
You don't need to be smart to realize that the XY represents chromosomes (see Pokemon Japanese logo). Hell, X Y = axis isn't also that far out, considering how obvious despite good the yin-yang analogy in Black and White.
So yeah this isn't like the previous Gens (save V) where the representative color/metal/gem has no meaning.
yeah you learn about it in math (geometry) class. X and Y represent the vertical (Length) and horizontal (width) base lines of a geometric shape, the Z axis represents the third dimension of it which is the rise (height) of it. so assuming a 3rd version or spin off of the game comes it will be named Z.
Y=red bird thing=birds can fly vertically(at an angle I guess)
X=deer= deer walk horizontally
This signature will not change until the rebirth of Nintendo Power. PSN: Interitum48 Started: 9:56 PM 12/18/2012