ask-midnight-glow
asked:
It might just be a special one, cuz that happened in the games you could catch them in various sizes.
thefireboundmage
answered:

You’d think so but if thats the case giant ponyta must just be very common :U

the-ink-pad

Charizard also was like, 10 feet tall in the anime, but can’t really usually get over 4 or 5 feet tall in reality.

quartz-poker

My theory is that pokemon grow to different sizes depending on where they lived, just like real animals. And that you can breed them for certain sizes or whatnot.